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    Surface electromyography signal - torque matching method based on multi-segmentation parallel CNN model
    1.
    发明申请
    Surface electromyography signal - torque matching method based on multi-segmentation parallel CNN model 有权

    公开(公告)号：US20220113206A1

    公开(公告)日：2022-04-14

    申请号：US17279639

    申请日：2020-05-07

    Applicant: QINGDAO TECHNOLOGICAL UNIVERSITY ,  XI'AN JIAOTONG UNIVERSITY

    Inventor： CHENG JUN CHEN ,  KAI HUANG ,  DONG NIAN LI ,  SHUAI ZHENG ,  JUN HONG

    IPC: G01L5/24 ,  G06T11/20 ,  A61B5/389 ,  A61B5/00

    Abstract: A surface electromyography signal-torque matching method based on multi-segmentation parallel CNN model (MSP-CNN model), step 1: collecting torque signals and surface electromyography (sEMG) signals when tightening a bolt; step 2: dividing a range of a transducer by at least two granularities, generating a plurality of torque sub-ranges corresponding to the at least two granularities and labeling the plurality of torque sub-ranges with torque labels; step 3: generating sEMG graphs of the sEMG signals in each time window; step 4: determining the torque labels of each time window under each of the at least two granularities according to the torque sub-ranges that average values of torques fall in; step 5: establishing a sample set; step 6: building a MSP-CNN model, and training parallel independent CNN models with sample datasets; and step 7: inputting the sEMG signals of the operator during assembly into trained MSP-CNN model and identifying assembly torques.

    Assembly body change detection method, device and medium based on attention mechanism
    3.
    发明授权
    Assembly body change detection method, device and medium based on attention mechanism 有权

    公开(公告)号：US11630972B2

    公开(公告)日：2023-04-18

    申请号：US17342592

    申请日：2021-06-09

    Applicant: QINGDAO TECHNOLOGICAL UNIVERSITY

    Inventor： Cheng Jun Chen ,  Chang Zhi Li ,  Dong Nian Li ,  Jun Hong

    IPC: G06K9/62 ,  G06V20/64

    Abstract: An assembly change detection method based on attention mechanism, including: establishing a three-dimensional model of an assembly body, adding a tag to each part in the three-dimensional model, setting several assembly nodes, obtaining depth images of the three-dimensional model under each assembly node in different viewing angles, and obtaining a change tag image of a added part at each assembly node; selecting two depth images at front and back moments in different viewing angles as training samples; performing semantic fusion, feature extraction, attention mechanism processing and metric learning sequentially on the training samples, training a detection model, continuously selecting training samples to train the detection model, saving model parameters with optimal similarity during training, completing training; and obtaining depth images of successive assembly nodes during assembling the assembly body, inputting depth images into trained detection model, and outputting change image of added part of the assembly body during assembly.

    MINIMAL QUANTITY LUBRICATION GRINDING DEVICE INTEGRATING NANOFLUID ELECTROSTATIC ATOMIZATION WITH ELECTROCALORIC HEAT PIPE
    4.
    发明申请
    MINIMAL QUANTITY LUBRICATION GRINDING DEVICE INTEGRATING NANOFLUID ELECTROSTATIC ATOMIZATION WITH ELECTROCALORIC HEAT PIPE 有权

    公开(公告)号：US20170120419A1

    公开(公告)日：2017-05-04

    申请号：US15102801

    申请日：2015-12-01

    Applicant: QINGDAO TECHNOLOGICAL UNIVERSITY

    Inventor： Changhe LI ,  Benkai LI ,  Yaogang WANG ,  Min YANG ,  Yanbin ZHANG

    IPC: B24B55/02 ,  F25B21/00

    CPC classification number: B24B55/02 ,  F25B21/00 ,  F25B2321/001

    Abstract: A minimal quantity lubrication grinding device including: heat pipe grinding wheel covered with electrocaloric film material on both side surfaces, wherein external electric field is applied to outside of the electrocaloric film material; and electrostatic atomization combined nozzle provided with high-voltage DC electrostatic generator and magnetic field forming device at the outside and in an electrocaloric refrigeration and magnetically enhanced electric field; electrostatic atomization combined nozzle is respectively connected with nanoparticle liquid and gas supply system; and nanofluid is electrostatically atomized by electrostatic atomization combined nozzle and is jet to grinding area to absorb heat of grinding area; electrocaloric film material absorbs heat in grinding area through electrocaloric effect and disperses absorbed heat through heat pipe grinding wheel after leaving grinding area to form a Carnot cycle. Nanofluid electrostatic atomization is integrated with electrocaloric refrigeration and heat pipe.

    Method and device for full wafer nanoimprint lithography
    5.
    发明授权
    Method and device for full wafer nanoimprint lithography 有权
    全晶圆纳米压印光刻的方法和装置

    公开(公告)号：US08741199B2

    公开(公告)日：2014-06-03

    申请号：US13521811

    申请日：2011-05-23

    Applicant: Hongbo Lan ,  Yucheng Ding

    Inventor： Hongbo Lan ,  Yucheng Ding

    IPC: B29C33/46

    CPC classification number: G03F7/0002 ,  B82Y10/00 ,  B82Y40/00

    Abstract: The present application relates to a full wafer nanoimprint lithography device comprises a wafer stage, a full wafer coated with a liquid resist, a demolding nozzle, a composite mold, an imprint head, a pressure passageway, a vacuum passageway and a UV light source. The present application also relates to an imprinting method using the full wafer nanoimprint lithography device comprises the following steps: 1) a pretreatment process; 2) an imprinting process; 3) a curing process; and 4) a demolding process. The device and the method can be used for high volume manufacturing photonic crystal LEDs, nano patterned sapphire substrates and the like in large scale patterning on the non-planar surface or substrate.

    Abstract translation: 本申请涉及全晶片纳米压印光刻设备，其包括晶片台，涂有液体抗蚀剂的全晶片，脱模喷嘴，复合模具，压印头，压力通道，真空通道和UV光源。 本申请还涉及使用全晶片纳米压印光刻装置的印记方法，包括以下步骤：1）预处理工艺; 2）印记过程; 3）固化过程; 和4）脱模过程。 该器件和方法可用于在非平面表面或衬底上大规模图案化的大量制造光子晶体LED，纳米图案化蓝宝石衬底等。

    ENGINEERING STRUCTURE MULTI-OBJECTIVE PERFORMANCE-BASED SEISMIC DESIGN
    6.
    发明申请
    ENGINEERING STRUCTURE MULTI-OBJECTIVE PERFORMANCE-BASED SEISMIC DESIGN 审中-公开
    工程结构多目标性能的地震设计

    公开(公告)号：US20120310607A1

    公开(公告)日：2012-12-06

    申请号：US13585273

    申请日：2012-08-14

    Applicant: Wenfeng Liu

    Inventor： Wenfeng Liu

    IPC: G06F17/50

    CPC classification number: G01V1/003

    Abstract: A method for determining a seismic design for a structure includes setting performance objectives; inputting the performance objectives into a single degree of freedom system to carry out a simulation test; continuously adjusting the size of seismic waves applied to the system to determine a relationship between performance demand and the period of the structure under different performance objectives; obtaining a seismic demand spectrum curve between a seismic influence coefficient or a spectral accelation and displacement performance objective in the single degree of freedom system; analyzing the relationship between the base shear force and the displacement of the engineering structure; converting the relationship into the relationship between the capacity and the displacement in the single degree of freedom system; obtaining a capacity spectrum curve; comparing the capacity spectrum curve with the performance demand spectrum curve; and assessing the seismic capacity of the structure under different performance objectives.

    Abstract translation: 一种用于确定结构的抗震设计的方法包括设定性能目标; 将性能目标输入单一自由度系统进行模拟测试; 不断调整应用于系统的地震波的大小，以确定不同性能目标下性能需求与结构周期之间的关系; 在单自由度系统中获得地震影响系数或频谱相关性和位移性能目标之间的地震需求谱曲线; 分析基础剪力与工程结构位移的关系; 将关系转化为单一自由度体系的能力与流离失所的关系; 获得容量谱曲线; 将容量谱曲线与性能需求谱曲线进行比较; 并评估不同性能目标下结构的抗震能力。

    Multi-angle two-dimensional ultrasonic vibration assisted nanofluid micro-lubrication grinding device
    7.
    发明授权
    Multi-angle two-dimensional ultrasonic vibration assisted nanofluid micro-lubrication grinding device 有权

    公开(公告)号：US10695889B2

    公开(公告)日：2020-06-30

    申请号：US15755251

    申请日：2017-02-21

    Applicant: QINGDAO TECHNOLOGICAL UNIVERSITY

    Inventor： Changhe Li ,  Xianpeng Zhang ,  Yanbin Zhang ,  Min Yang ,  Shuming Guo ,  Naiqing Zhang ,  Qidong Wu ,  Huajun Cao

    IPC: B24B55/02 ,  B24B1/04 ,  B24B49/10 ,  B24B49/03 ,  B24B41/06 ,  B24B49/14 ,  B24D7/10

    Abstract: A multi-angle two-dimensional ultrasonic vibration assisted nanofluid micro-lubrication grinding device includes a workpiece fixture for clamping a workpiece and a grinding wheel for grinding the workpiece, the fixture being connected with a two-dimensional ultrasonic vibration device to maintain the sharpness of the grinding wheel cutting edge and cool the grinding temperature on the workpiece surface; a jetting mechanism used for jetting nanofluid to the workpiece is arranged on one side of the grinding wheel so as to form two-dimensional ultrasonic vibration and nanofluid micro-lubrication grinding coupling; the device applies the variable-angle two-dimensional ultrasonic vibration technology to grinding processing, and adjusts the angles of two ultrasonic vibrators to generate different combined vibration directions to change the relative movement trajectories of abrasive particles and a workpiece. A grinding force and grinding temperature are detected in real time by force measurement and temperature measurement devices, meanwhile cooperation with nanofluid micro-lubrication is utilized.

    Nano fluid electrostatic atomization controllable jet minimal quantity lubrication grinding system
    8.
    发明授权
    Nano fluid electrostatic atomization controllable jet minimal quantity lubrication grinding system 有权
    纳米流体静电雾化可控射流最小量润滑研磨系统

    公开(公告)号：US09511478B2

    公开(公告)日：2016-12-06

    申请号：US14405962

    申请日：2013-11-11

    Applicant: QINGDAO TECHNOLOGICAL UNIVERSITY

    Inventor： Changhe Li ,  Dongzhou Jia ,  Sheng Wang ,  Qiang Zhang

    IPC: B24B55/03 ,  B24B55/02 ,  B05B5/03 ,  B05B5/08 ,  B05B7/04 ,  B05B7/10 ,  H01J37/32

    CPC classification number: B24B55/03 ,  B05B5/03 ,  B05B5/087 ,  B05B7/0491 ,  B05B7/10 ,  B24B55/02 ,  H01J37/32073 ,  H01J37/3244 ,  H01J37/32568 ,  H01J37/32697 ,  H01J2237/327

    Abstract: The present invention relates to a nano fluid electrostatic atomizing controllable jet minimal lubricating for grinding system. A grinding system is provided with a corona charging nozzle, a nozzle body of the corona charging nozzle is connected with a liquid supply system and an air supply system, a high-voltage direct-current electrostatic generator at the lower part of the nozzle body is connected with the cathode of an adjustable high-voltage direct-current power supply, the anode of the adjustable high-voltage direct-current power supply is connected with a workpiece charging device, and the workpiece charging device is attached to the non-machined surface of the workpiece. Nano fluid which used as grinding liquid is fed into the corona charging nozzle through the liquid supply system, meanwhile, the air supply system feeds compressed air into the corona charging nozzle.

    Abstract translation: 本发明涉及研磨系统的纳米流体静电雾化可控射流最小润滑。 研磨系统设置有电晕充电喷嘴，电晕充电喷嘴的喷嘴体与液体供给系统和供气系统连接，喷嘴体下部的高压直流静电发生器是 与可调高压直流电源的阴极连接，可调高压直流电源的阳极与工件充电装置连接，工件充电装置连接到非加工表面 的工件。 用作研磨液的纳米流体通过液体供给系统供给到电晕充电嘴中，同时，供气系统将压缩空气送入电晕充电嘴。

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