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    Ship image trajectory tracking and prediction method based on ship heading recognition
    2.
    发明授权
    Ship image trajectory tracking and prediction method based on ship heading recognition 有权

    公开(公告)号：US12205301B2

    公开(公告)日：2025-01-21

    申请号：US17886901

    申请日：2022-08-12

    Applicant: Shanghai Maritime University ,  Wuhan University of Technology

    Inventor： Xinqiang Chen ,  Hao Wu ,  Yongsheng Yang ,  Bing Wu ,  Yang Sun ,  Huafeng Wu ,  Wei Liu ,  Jiangfeng Xian

    IPC: G06T7/20 ,  G01C21/20

    Abstract: Disclosed is a ship image track tracking and prediction method based on ship heading recognition, which includes the following steps: obtaining a ship image data set, preprocessing the data set to obtain a preprocessed data set; inputting the preprocessed data set into the rotating ship detection network for training, obtaining the trained rotating ship detection network, collecting the ship navigation video, and inputting the ship navigation video into the trained rotating ship detection network to obtain the ship detection result; inputting the ship detection result into the rotating ship tracking network and tracking the target ship to obtain the historical trajectory and the heading information of the target ship; inputting the historical trajectory and ship heading information of the target ship into the ship trajectory and ship heading prediction network, and predicting the navigation trajectory and ship heading at sea.

    Wear monitoring method of polymer thrust bearing based on ultrasonic reflection coefficient amplitude spectrum (URCAS)
    3.
    发明授权
    Wear monitoring method of polymer thrust bearing based on ultrasonic reflection coefficient amplitude spectrum (URCAS) 有权

    公开(公告)号：US12158447B2

    公开(公告)日：2024-12-03

    申请号：US18371582

    申请日：2023-09-22

    Applicant: WUHAN UNIVERSITY OF TECHNOLOGY

    Inventor： Xinping Yan ,  Changxiong Ning ,  Wu Ouyang ,  Fei Hu

    IPC: G01N29/07 ,  F16C41/00 ,  G01M13/04

    Abstract: A wear monitoring method of a polymer thrust bearing based on an ultrasonic reflection coefficient amplitude spectrum (URCAS), includes: selecting a corresponding delay block probe based on a material of a to-be-tested bearing, and setting corresponding parameters of a pulse generator; after collecting a primary echo from a surface of the delay block probe as a reference signal, placing the delay block probe in a designated region on a back of the to-be-tested bearing, and collecting time-domain echo signals from upper and lower surfaces of the bearing; establishing a propagation model of an ultrasonic signal in a polymer bearing, and calculating a theoretical URCAS based on the propagation model; calculating a measured URCAS; and constructing an objective function, and solving the objective function by using a differential evolution algorithm. A plurality of parameters of the polymer bearing is solved to meet a requirement for wear monitoring by adopting the method.

    Ship detection and tracking method and device
    4.
    发明授权
    Ship detection and tracking method and device 有权

    公开(公告)号：US12154283B1

    公开(公告)日：2024-11-26

    申请号：US18393732

    申请日：2023-12-22

    Applicant: Wuhan University of Technology

    Inventor： Linying Chen ,  Yamin Huang ,  Pengfei Chen ,  Junmin Mou

    IPC: G06K9/00 ,  G06T7/246 ,  G06T7/277

    Abstract: Disclosed is a ship detection and tracking method and device, the method comprises: pre-training a yolov5s network model with a first preset number of high-speed moving object datasets to obtain an initial ship detection model; adding a preset attention mechanism to the initial ship detection model to obtain a transitional ship detection model; inputting a second preset number of annotated ship datasets into the initial ship detection model with the preset attention mechanism for training to obtain a target ship detection model; inputting an original ship video frame into the target ship detection model, and outputting the position information of the ship to be tracked; performing ship video image tracking on the ship to be tracked according to the position information. This disclosure performs pre-training, which only requires a small amount of annotated ship data to determine the target ship detection model, achieving video image tracking of the target ship.

    PROCESSING METHOD FOR GRAPHITE ACID PURIFICATION WASTEWATER
    5.
    发明公开
    PROCESSING METHOD FOR GRAPHITE ACID PURIFICATION WASTEWATER 审中-公开

    公开(公告)号：US20240158274A1

    公开(公告)日：2024-05-16

    申请号：US18346262

    申请日：2023-07-02

    Applicant: GRAPHEX TECHNOLOGIES LLC. ,  WUHAN UNIVERSITY OF TECHNOLOGY ,  GRAPHEX GROUP LIMITED

    Inventor： FRANK YU ,  LIQUN LUO ,  BIN QIU ,  TING JIA ,  XIAOXUE ZHANG

    IPC: C02F9/00 ,  F01D15/10

    CPC classification number: C02F9/00 ,  F01D15/10 ,  C02F2101/203

    Abstract: The application discloses a processing method for graphite acid purification wastewater which comprises processing steps of neutralization and precipitation preprocessing, supernatant electrically distilling and vaporizing, electric energy recycling, condensate recycling and vaporization residue regularly discharging. The processing method performs neutralization and precipitation preprocessing to obtain neutralized supernatant, pumps the supernatant into an electric distiller to be vaporized and obtain electric energy for recycling through steam turbine, and acquires vaporization condensate by residual heat exchange. The vaporization condensate reaches the standard of graphite acid purification impurities such as fluorine, chlorine, aluminum, silicon, iron, magnesium, copper, and zinc and the wastewater discharge standard. The steam heat energy can be recycled and transformed into electric energy to save processing cost. Meanwhile, the vaporization condensate can also be used in the graphite purification process to save water resources, which is not only environmentally friendly and efficient, but also intensively economical.

    Method for testing surface energy of aggregate based on static drop method
    6.
    发明授权
    Method for testing surface energy of aggregate based on static drop method 有权

    公开(公告)号：US11982608B2

    公开(公告)日：2024-05-14

    申请号：US17826171

    申请日：2022-05-27

    Applicant: WUHAN UNIVERSITY OF TECHNOLOGY

    Inventor： Rong Luo ,  Jing Luo ,  Chongzhi Tu ,  Tingting Huang ,  Xiang Wang ,  Longchang Niu ,  Qiang Miao

    IPC: G01N13/02

    CPC classification number: G01N13/02 ,  G01N2013/0208

    Abstract: Disclosed is a method for measuring surface energy of aggregates based on static drop method, comprising (1) aggregates grinding and pretreatment; (2) obtaining the surface texture index; (3) calculating the surface energy based on static drop method experiment; (4) fitting to obtain a functional relationship between the surface texture index and surface energy; (5) calculating the surface energy of the original aggregate. The method considers the influence of the grinding process on the surface texture of the aggregates when measuring the surface energy of the aggregates, which significantly improves the accuracy of the static drop method test. The static drop method can be used to replace the vapor adsorption method to test the surface energy of aggregate, and the low-cost optical contact angle instrument can replace the expensive magnetic suspension weight balance system to test the surface energy of aggregate, which greatly reduces the test cost.

    Unmanned surface vehicle control method based on switching T-S fuzzy system under DoS attack
    7.
    发明授权
    Unmanned surface vehicle control method based on switching T-S fuzzy system under DoS attack 有权

    公开(公告)号：US11921505B2

    公开(公告)日：2024-03-05

    申请号：US17296980

    申请日：2020-11-18

    Applicant: WUHAN UNIVERSITY OF TECHNOLOGY

    Inventor： Yong Ma ,  Hao Li ,  Zongqiang Nie

    IPC: B63B79/20 ,  B63B79/40 ,  G05D1/00 ,  G08G3/00 ,  H04L9/40

    CPC classification number: G05D1/0088 ,  B63B79/20 ,  B63B79/40 ,  G05D1/0206 ,  G08G3/00 ,  G05D2201/0207 ,  H04L63/145

    Abstract: The present invention discloses a collaborative design method using an event-triggered scheme (ETS) and a Takagi-Sugeno (T-S) fuzzy H∞ controller in a network environment. For the problem about the unmanned surface vehicle control based on a switching T-S fuzzy system under an aperiodic DoS attack, the present invention provides an H∞ controller design method based on the event-triggered scheme. The characteristics of the unmanned surface vehicle system under the DoS attack are analyzed, and external disturbance in the navigation process is added into an unmanned surface vehicle motion model to establish an unmanned surface vehicle switching system model. The stability of the system is analyzed by piecewise Lyapunov functionals, such that controller gain and event-triggered scheme weight matrix parameters are obtained, thus ensuring that a networked unmanned surface vehicle navigation system has the ability to resist the DoS attack and the external disturbance.

    SHORT-PROCESS HIGH-PERFORMANCE FORMING METHOD OF HIGH-STRENGTH ALUMINUM ALLOY, AND USE THEREOF
    8.
    发明公开
    SHORT-PROCESS HIGH-PERFORMANCE FORMING METHOD OF HIGH-STRENGTH ALUMINUM ALLOY, AND USE THEREOF 审中-公开

    公开(公告)号：US20230416895A1

    公开(公告)日：2023-12-28

    申请号：US18208264

    申请日：2023-06-10

    Applicant: WUHAN UNIVERSITY OF TECHNOLOGY

    Inventor： Zhili HU ,  Pengfei WEI ,  Lin HUA

    IPC: C22F1/04 ,  C21D9/46 ,  C22F1/00

    CPC classification number: C22F1/04 ,  C21D9/46 ,  C22F1/002

    Abstract: The present disclosure provides a short-process high-performance forming method of a high-strength aluminum alloy, and use thereof. In the present disclosure, pre-hardening treatment is conducted on an obtained W-temper aluminum alloy sheet blank after a solution treatment and quenching, to obtain a pre-hardened aluminum alloy sheet blank for batch supply. The pre-hardened aluminum alloy sheet blank is subjected to plastic forming, to obtain a component with satisfactory performances. After the pre-hardening treatment, a high-strength aluminum alloy sheet blank forms a GPII zone that is completely coherent with a matrix, and has a room-temperature formability exceeding that off traditional soft sheet blank. Moreover, the GPII zones interact with dislocations during the forming, resulting in planar slips. In this way, large-scale dynamic recovery is more effectively suppressed, thus enhancing a work hardening ability of a formed component. In addition, a large number of nano-stacking faults are generated during deformation.

    Multi-user slice resource allocation method based on competitive game
    10.
    发明授权
    Multi-user slice resource allocation method based on competitive game 有权

    公开(公告)号：US11716748B2

    公开(公告)日：2023-08-01

    申请号：US17797049

    申请日：2021-06-15

    Applicant: WUHAN UNIVERSITY OF TECHNOLOGY

    Inventor： Xin Yan ,  Huixian Xu ,  Ruijun Liu

    IPC: H04W24/02 ,  H04W72/53

    CPC classification number: H04W72/53

    Abstract: The present disclosure provides a multi-user slice resource allocation method based on competitive game. In the method, first model a system as a two-tier architecture of virtual infrastructure service providers (VInPs) and users, and build a VInP utility model and a user utility model; then divide slice resource allocation into nodes and links, and build a node power consumption model and a link power consumption model, then determine a revenue of the VInP and a revenue of a user; and calculate a total revenue of a slice according to the revenue of the VInP and the revenue of the user, and use the total revenue of the slice as a network model; then solve the network model, where the VInP is used as a seller, the user is used as a buyer, the seller determines an initial price according to a total quantity of slice resources, and the buyer bids on the slice, and allocate the slice resources by using a competitive game mechanism. The method of the present disclosure may enhance the utility of the user, and improve a resource allocation effect.

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