AUTOMATIC EARLY WARNING METHOD AND SYSTEM FOR PRESSURE SORE PRONE PART OF HUMAN BODY

    公开(公告)号:US20220133216A1

    公开(公告)日:2022-05-05

    申请号:US17431389

    申请日:2020-07-14

    IPC分类号: A61B5/00

    摘要: An automatic early warning method and system is for a pressure ulcer prone part of a human body. The method includes: constructing a matrix diagram by using marks with variable states; receiving a pressure signal from a pressure sensor matrix laid in an area that a body of a patient is frequently in contact with; corresponding each miniature ultra-thin dynamic pressure sensor contained in the pressure sensor matrix to each mark in the matrix diagram respectively; after receiving a pressure signal indicating that the pressure at a part in contact with the patient, sensed by the pressure sensor matrix, is greater than or equal to a critical value, changing the state of the marks in the matrix diagram, corresponding to the miniature ultra-thin dynamic pressure sensors in the pressure sensor matrix sensing that the pressure is greater than or equal to the critical value, into an early warning state.

    MICRO-NANO VIBRATION MAGNETIC GENERATOR
    5.
    发明公开

    公开(公告)号:US20240266926A1

    公开(公告)日:2024-08-08

    申请号:US18517007

    申请日:2023-11-22

    IPC分类号: H02K11/30 H02K1/06

    CPC分类号: H02K11/30 H02K1/06

    摘要: A micro-nano vibration magnetic generator is provided. The micro-nano vibration magnetic generator includes a power generation unit and a magnetic supply unit, wherein the power generation unit includes a magnetic core, a power generation coil wound on the magnetic core and a magnetic gap set on the magnetic core, wherein the magnetic gap is used to introduce the magnetic field line of the induction magnetic supply unit into the magnetic core; the magnetic core is used to conduct the introduced magnetic field line and form a magnetic field line loop with the external magnetic field; the power generation coil is used to generate current and output when the magnetic field formed by the magnetic line inside the magnetic core changes; the magnetic supply unit, which moves relative to the power generation unit, provides a changing external magnetic field at the magnetic gap.

    Method, system, and intelligent terminal for one-bit quantization direction of arrival estimation

    公开(公告)号:US12044786B1

    公开(公告)日:2024-07-23

    申请号:US18510832

    申请日:2023-11-16

    IPC分类号: G01S3/02 G01S3/12

    CPC分类号: G01S3/023 G01S3/12

    摘要: A method, a system and an intelligent terminal for one-bit quantization DoA estimation, which include: when a quantity of far-field and uncorrelated spatial narrow-band source signals are incident from different directions to a uniform linear array receiver, receiving the narrow-band source signals by a quantity of antenna array elements, and the vector and matrix are used to model the received signals by one-bit quantization to obtain a joint probability mass model of one-bit quantization DoA estimation; deriving the joint probability mass model of one-bit quantization DoA estimation, and constructing an l2,1 norm optimization model based on the maximum likelihood principle; solving the steepest descent direction of the optimization model by steepest descent method to obtain the one-bit quantization DoA and the source number.

    OPTIMIZATION METHOD AND SYSTEM FOR HYBRID FRP AND STEEL BARS

    公开(公告)号:US20240211652A1

    公开(公告)日:2024-06-27

    申请号:US18545983

    申请日:2023-12-19

    IPC分类号: G06F30/20 G01N3/28

    摘要: The present disclosure relates to an optimization method and system for hybrid FRP and steel bars. The optimization method includes: determining a cross-sectional bending bearing capacity, a maximum cross-sectional bending bearing capacity, and a minimum cross-sectional bending bearing capacity according to basic material parameters and a design value of a bending moment; determining whether the cross-sectional bending bearing capacity, the maximum cross-sectional bending bearing capacity, and the minimum cross-sectional bending bearing capacity meet a first preset condition; if yes, determining a maximum steel bar area according to the basic material parameters; determining a maximum ductility of a steel bar beam; determining whether the maximum ductility and the target ductility meet a second preset condition; if yes, determining a minimum steel bar area and a maximum FRP bar area according to the maximum steel bar area; and determining an actual steel bar area and an actual FRP bar area.

    Water Flow Power Generation Device
    9.
    发明公开

    公开(公告)号:US20240209829A1

    公开(公告)日:2024-06-27

    申请号:US17918544

    申请日:2021-07-30

    IPC分类号: F03B17/06 F03B13/10

    摘要: A water flow power generation device includes a supporting frame, a carrying platform, a power generation assembly, a speed-increasing gear box and an impeller blade assembly, the impeller blade assembly includes a rotating shaft connected with the speed-increasing gear box and a plurality of impeller blades uniformly arranged at one end of the rotating shaft, the impeller blades are in contact with the water flow and are driven by the water flow to rotate. The carrying platform can be adjusted to move up and down, so that the contact area of the impeller blade assembly and the water flow is adjusted, water energy can be utilized to the maximum extent, and the service life of the impeller blade assembly is prolonged.

    Dynamic true triaxial electromagnetic Hopkinson bar system

    公开(公告)号:US11988645B2

    公开(公告)日:2024-05-21

    申请号:US17359126

    申请日:2021-06-25

    IPC分类号: G01N3/18

    CPC分类号: G01N3/18 G01N2203/0098

    摘要: The present disclosure provides a dynamic true triaxial electromagnetic Hopkinson bar system, including a central cubic box, a horizontal cruciform support platform, and a central support platform, wherein the central cubic box is disposed in the center of the upper surface of the central support platform; the central cubic box and the horizontal cruciform support platform form an orthogonal coordinate system for precisely positioning and centering the dynamic true triaxial electromagnetic Hopkinson bar system; the confining-pressure loading systems, electromagnetic pulse generators, circular bulges, square bars, and self-lubricating square bar fixation and support frames in the directions X, Y, and Z are respectively symmetrically arranged by taking the central cubic box as a symmetric center; and the systems in the directions X, Y, and Z together construct the dynamic true triaxial electromagnetic Hopkinson bar system.