公开(公告)号：US20170353044A1

公开(公告)日：2017-12-07

申请号：US15536138

申请日：2015-11-24

Applicant: HEFEI UNIVERSITY OF TECHNOLOGY

Inventor： Lifen YUAN ,  Peng CHEN ,  Yigang HE ,  Shuai LUO ,  Zhijie YUAN ,  Zhen CHENG ,  Deqin ZHAO ,  Yesheng SUN ,  Lei WU

IPC: H02J7/00 ,  H04W84/18 ,  H02J7/14 ,  G06F1/32

CPC classification number: H02J7/0027 ,  B60L11/1809 ,  G06F1/3212 ,  H02J7/0013 ,  H02J7/1423 ,  H02J7/1446 ,  H02J2007/0096 ,  H02J2007/0098 ,  H02J2007/143 ,  H04W84/18

Abstract: A wireless sensor network sensor network charging method for multi-charge nodes, including the following steps: (1) establishing a WSNs model; (2) dividing field ranges of charging trolleys; and (3) charging the charging trolleys: (a) initializing: l=0 and j=0, wherein l is the total number of received alarm nodes, and j is the serial number of an alarmed node; (b) receiving an alarm signal, updating values of l and j, generating a shortest charging path sl, and computing an energy discriminate vector; (c) if a vector element satisfies Qlj≦5% B and j=1, 2, . . . , l, then executing a charging task on l alarm nodes according to the shortest charging path sl corresponded thereby, otherwise, returning to continuously update the values of l and j; (d) executing the charging task; and (e) determining whether the charging trolleys are required to go back to a parking lot for recharging, enabling the charging trolleys to go back to the parking lot for recharging if yes, and otherwise, returning to continuously update the values of l and j and the vector element Qlj.

公开(公告)号：US20170275836A1

公开(公告)日：2017-09-28

申请号：US15508461

申请日：2016-04-01

Applicant: Hefei University of Technology

Inventor： Mansheng Dong ,  Chao Zhang ,  Qin Shi ,  Yikai Chen ,  Zhibin Sun ,  Fei Tang ,  Shuqin Li ,  Shangding Gu

IPC: E01F13/04 ,  F16G13/18

CPC classification number: E01F13/046 ,  E01F13/048 ,  F16G13/06 ,  F16G13/18

Abstract: A unidirectionally bendable transmission chain is provided. At a first side thereof, an inner stop plate is fixed between a pair of inner chain plates at both ends of pin shafts, and an outer stop plate is fixed between a pair of outer chain plates at both ends of the pin shafts. Both ends of the inner stop plate are flush with axes of pin holes provided at both ends of the inner chain plates, and both ends of the outer stop plate are respectively provided with extensions beyond the outer chain plates; the extensions of the outer stop plate form a one-sided support for the inner stop plate to prevent the transmission chain from bending toward the first side, thus the transmission chain bends unidirectionally toward a second side opposite to the first side. A hoisting mechanism and a liftable roadblock having the above transmission chain are further provided.

公开(公告)号：US20170232543A1

公开(公告)日：2017-08-17

申请号：US15587380

申请日：2017-05-04

Applicant: HEFEI UNIVERSITY OF TECHNOLOGY

Inventor： Ruijun Li ,  Zhenying Cheng ,  Chen Chen ,  Kuangchao Fan

IPC: B23K9/095 ,  B23K9/133 ,  G01B5/012 ,  B23K9/04

CPC classification number: G01B5/012 ,  B21K1/02 ,  G01B1/00

Abstract: A fabrication and monitoring device for micro probe ball tips includes a magnetic field generator, a 3-dimensional displacement adjusting mechanism, a wire supplier and an image monitoring system. The magnetic field generator includes a U-shaped electromagnet. The 3-dimensional displacement adjusting mechanism includes a 2-dimensional moving platform, a 1-dimensional moving platform, a guiding tube, and a sparking plug. The wire supplier includes a transmission wheel, a pressing roller, a wire feeding roller and a tungsten wire material supplier. The image monitoring system includes a micro objective, a third-generation infinite beam structure lens and a supporting frame. The present invention overcomes an eccentric problem of a tungsten ball and a tungsten rod, and also overcomes a sphericity problem caused by gravity, so as to improve sphericity, eccentric accuracy and enable monitoring of dynamic manufacturing process of the probe ball tips.

公开(公告)号：US12211259B2

公开(公告)日：2025-01-28

申请号：US17833923

申请日：2022-06-07

Applicant: Hefei University of Technology

Inventor： Li Hong ,  Zhouliang Yu ,  Binggen Zhan ,  Mingming Li

IPC: G06T7/73 ,  G06T5/50 ,  G06T7/11 ,  G06T7/55 ,  G06T7/80 ,  G06V10/774 ,  G06V10/776 ,  G06V10/82

Abstract: A method for identifying and extracting characterization parameters of recycled concrete sand particles based on deep learning technology is provided. The method integrates image processing method based on deep learning and quickly recognition of recycled concrete sand particles (RCSP), adopts U-Net semantic segmentation model, develops RCSP data set by inventing a 3D image acquisition platform equipment of recycled concrete sand, in which two CCD industrial cameras are used to collect original multi-dimensional images of the moving RCSP synchronously in the same frame. Secondly, data sets are separated into training set and verification set by 4:1, in which training set are first used to train the U-Net semantic segmentation model to quickly identify the recycled concrete sand, during this process the best training parameters of U-Net semantic segmentation model are determined. Finally, the verification sets are adopted to validate the training model.

公开(公告)号：US12206339B1

公开(公告)日：2025-01-21

申请号：US18673927

申请日：2024-05-24

Applicant: HEFEI UNIVERSITY OF TECHNOLOGY

Inventor： Xing Zhang ,  Feng Han ,  Xiangdui Zhan ,  Xinxin Fu ,  Jilei Wang

IPC: H02M7/5387 ,  H02J3/38 ,  H02M7/48

Abstract: A method for hybrid control of grid-connected inverter based on time sharing of a voltage source and a current source including at least one control process, each control process including N+M control cycles. N may be a number of control cycles of a grid-connected inverter operating in a voltage source mode, M may be a number of control cycles of the grid-connected inverter operating in a current source mode. The control cycles of the grid-connected inverter operating in a voltage source mode and a current source mode may switch by counting. Aiming at a problem of being difficult to realize stable operation under large fluctuations in SCR, the present disclosure realizes a time-sharing control of the voltage source mode and the current source mode through a control algorithm, hybrids features of both mode, improves the stability of the grid-connected inverter, and realizes a stable operation under large fluctuations in SCR.

公开(公告)号：US12172103B2

公开(公告)日：2024-12-24

申请号：US18544281

申请日：2023-12-18

Applicant: Hefei University of Technology

Inventor： Yang Lu ,  Hanye Xing ,  Jingzhe Xue ,  Yonghong Song ,  Hao Xu ,  Sheng Chen ,  Kangkang Li ,  Liang Dong ,  Wei Zhang ,  Zongshun Peng ,  Lijing Wang

IPC: C07K14/435 ,  B01D1/00 ,  B01D1/30 ,  C02F1/14 ,  H01F1/34 ,  H01F1/36 ,  C02F101/30 ,  C02F103/08

Abstract: A magnetic material used in the magnetic SF-based composite aerogel is a ferroferric oxide nanocubic particle, which is a magnetic nanomaterial with both excellent magnetocaloric performance and excellent photothermal performance. The magnetic SF-based composite aerogel prepared by the present disclosure exhibits excellent responsiveness to both alternating current (AC) magnetic fields and sunlight. Under an action of an AC magnetic field, the magnetic SF-based composite aerogel exhibits excellent temperature rise performance, which can inhibit the generation of biofouling in pores and channels inside a three-dimensional (3D) porous evaporation material. The magnetic SF-based composite aerogel exhibits excellent water evaporation performance under a sunlight irradiation, with a water evaporation rate of 2.03 kg m−2·h−1.

公开(公告)号：US12122008B1

公开(公告)日：2024-10-22

申请号：US18677961

申请日：2024-05-30

Applicant: HEFEI UNIVERSITY OF TECHNOLOGY

Inventor： Fangfang Dong ,  Zhao Liu ,  Xiaomin Zhao ,  Jiang Han ,  Xiaoyong Huang

IPC: B23Q15/12 ,  B23Q3/10 ,  G05B19/418

CPC classification number: B23Q15/12 ,  B23Q3/105 ,  G05B19/41825 ,  G05B19/41885

Abstract: The invention relates to the field of milling, specifically a point position layout optimization method and a follow-up support head in mirror milling. It features an annular and linear sliding module to design a support head with adjustable support points. A corresponding layout optimization method is developed, starting with a coupled vibration model of the machining process. A layout optimization model is then created, with the quantity of support points and the support radius as decision variables. The goal is to minimize vibration amplitude and root mean square, constrained by structural interference and boundary conditions. The solution is achieved using a particle swarm optimization algorithm, supplemented by parameter scanning and a penalty function strategy. This invention addresses the limitations of existing single support point layouts for the mirror milling of various large thin-walled workpieces.

公开(公告)号：US20240289508A1

公开(公告)日：2024-08-29

申请号：US18410994

申请日：2024-01-11

Applicant: HEFEI UNIVERSITY OF TECHNOLOGY

Inventor： Wenyu HE ,  Wenhan CHEN ,  Dongyang HU ,  Yifan LI ,  Zhidong LI ,  Zuocai WANG ,  Jing ZHANG

IPC: G06F30/13 ,  G06F17/16

CPC classification number: G06F30/13 ,  G06F17/16

Abstract: Disclosed is a dual physically-driven and data-driven method for reconstructing internal response of a bridge. The method includes: obtaining acceleration response by an acceleration sensor under an action of an unknown load of the bridge; embedding a physical logic into a neural network based on a frequency response function; putting a physical formula and corresponding boundary conditions and initial conditions into a loss function as penalty terms, and limiting a space of a feasible solution accordingly; and training a neural network model, and predicting acceleration of an unknown point by inputting an acceleration response set of a known point obtained by the sensor into the network. The formula is solved by converting direct solving of a control formula into optimization of the loss function, such that the problems that the internal response of the bridge is difficult to measure and excessively depends measured data can be effectively solved, and accuracy and robustness of internal response prediction of the bridge can be improved.

公开(公告)号：US20240207756A1

公开(公告)日：2024-06-27

申请号：US18544281

申请日：2023-12-18

Applicant: Hefei University of Technology

Inventor： Yang LU ,  Hanye XING ,  Jingzhe XUE ,  Yonghong SONG ,  Hao XU ,  Sheng CHEN ,  Kangkang LI ,  Liang DONG ,  Wei ZHANG ,  Zongshun PENG ,  Lijing WANG

IPC: B01D1/30 ,  B01D1/00 ,  C02F1/14 ,  C07K14/435

CPC classification number: B01D1/30 ,  B01D1/0035 ,  C02F1/14 ,  C07K14/43586 ,  C02F2101/308 ,  C02F2201/002 ,  C02F2303/20

Abstract: A magnetic material used in the magnetic SF-based composite aerogel is a ferroferric oxide nanocubic particle, which is a magnetic nanomaterial with both excellent magnetocaloric performance and excellent photothermal performance. The magnetic SF-based composite aerogel prepared by the present disclosure exhibits excellent responsiveness to both alternating current (AC) magnetic fields and sunlight. Under an action of an AC magnetic field, the magnetic SF-based composite aerogel exhibits excellent temperature rise performance, which can inhibit the generation of biofouling in pores and channels inside a three-dimensional (3D) porous evaporation material. The magnetic SF-based composite aerogel exhibits excellent water evaporation performance under a sunlight irradiation, with a water evaporation rate of 2.03 kg m−2·h−1.

公开(公告)号：US20240170963A1

公开(公告)日：2024-05-23

申请号：US18307937

申请日：2023-04-27

Applicant: Hefei University of Technology

Inventor： Kaile ZHOU ,  Hengheng XING ,  Xinhui LU

IPC: H02J3/00 ,  G06Q40/04 ,  G06Q50/06

CPC classification number: H02J3/008 ,  G06Q40/04 ,  G06Q50/06 ,  H02J3/003

Abstract: A blockchain-based electricity trading method and system are disclosed. Based on the initial trading plan of the user in the virtual power plant, a non-cooperative game model among multiple users and the virtual power plant is constructed, a purchase price, a sale price and a demand response compensation price of a trading between the user and the virtual power plant during t period are determined; according to the above results, a final load demand of user i, a charging capacity or discharging capacity of the energy storage device of user i, as well as a purchase electricity quantity or sale electricity quantity of a trading with the virtual power plant during t period are determined, and a final trading scheme is formed; and based on the final trading scheme, both trading parties are matched, a trading contract is generated and a verification is performed.