Method for rapidly estimating for remaining capacity of a battery

    公开(公告)号:US11333711B2

    公开(公告)日:2022-05-17

    申请号:US16746922

    申请日:2020-01-19

    Abstract: The present invention discloses a method for rapidly estimating for a remaining capacity of a battery, comprising performing a constant current charge to the battery in a first period, instantly capturing a voltage/temperature of the battery in a frequency, and generating a voltage-time graph; after leaving the battery along for a second period, instantly capturing the voltage/temperature of the battery in the frequency; calculating a voltage rising rate during the first period; calculating a voltage drop rate during a leaving-along period; calculating a critical sample time; applying the critical sample time, and comparing the voltage-time graph measured in the first period, to obtain a critical sampling voltage; calculating a voltage difference slope; calculating a charging time, which is consumed by charging the battery from a lower-bound voltage to an upper-bound voltage with the constant current; calculating a compensation ratio value; and calculating the remaining capacity of the battery.

    Image adaptive feature extraction method and application thereof

    公开(公告)号:US11295160B2

    公开(公告)日:2022-04-05

    申请号:US16676453

    申请日:2019-11-07

    Abstract: An image adaptive feature extraction method includes dividing an image into a plurality of blocks, performing a feature extraction processing on the plurality of blocks, and obtaining a block feature from each of the plurality of blocks after the feature extraction processing; calculating each block feature by means of a support vector machine (SVM) classifier, wherein each block feature is calculated to obtain a hyperplane normal vector; setting a threshold value, determining the block feature according to the hyperplane normal vector, recording the block as an adaptive feature block when a value of the hyperplane normal vector is higher than the threshold value, and integrating each adaptive feature block to form an adaptive feature image. Because an image adaptive feature extraction process is performed before a pedestrian image detection is calculated, and effective feature data is then selected, computational efficiency is boosted and detection pedestrian error probability is reduced.

    Method for preparing aluminum nitride-zinc oxide ultraviolet detecting electrode

    公开(公告)号:US11049993B1

    公开(公告)日:2021-06-29

    申请号:US16727846

    申请日:2019-12-26

    Abstract: The present invention adopts an aluminum nitride substrate with great heat dissipation, great thermal conductivity, high electrical insulation, long service life, corrosion resistance, high temperature resistance, and stable physical characteristics. A high-quality zinc oxide film with a wide energy gap is fabricated on the aluminum nitride substrate by magnetron radio frequency (RF) sputtering. Compared with general vapor deposition, chemical vapor deposition and hydrothermal, the magnetron RF sputtering grows the high-quality zinc oxide film with few defects. The zinc oxide film with few defects concentration is an important key technology for short-wavelength optoelectronic devices, which decrease leakage currents of the optoelectronic devices, reduces flicker noise, and further improves its UV-visible rejection ratio.

    Screw clamping device
    17.
    发明授权

    公开(公告)号:US10906162B2

    公开(公告)日:2021-02-02

    申请号:US15874073

    申请日:2018-01-18

    Abstract: A screw clamping device includes a body, a pressing unit, a resilient unit, a clamping unit and a connecting unit. The body is a hollow-core cylinder, is subject to axial penetration of a screwdriver, and is movable axially in synchrony with rotation of the screwdriver. The pressing unit is disposed on the body and adapted to press against a surface of a working object. The resilient unit is disposed between the body and the pressing unit. The clamping unit is rotatably connected to the body. The connecting unit has one end connected to the pressing unit and the other end connected to the clamping unit. While the body is moving axially, the connecting unit drives the clamping unit to rotate and thereby clamp or loosen screws.

    Fuel gas nozzle
    19.
    发明授权

    公开(公告)号:US10900664B2

    公开(公告)日:2021-01-26

    申请号:US16228768

    申请日:2018-12-21

    Abstract: A fuel gas nozzle used in a microturbine includes a first chamber, a second chamber connected to the first chamber, a pilot fuel gas pipe, a main fuel gas pipe and an intake pipe. An intake zone and a mixing zone are respectively formed in the first chamber and the second chamber and are communicated with each other. The pilot fuel gas pipe is for introducing a first fuel gas into a downstream of the second chamber. The main fuel gas pipe is for introducing a second fuel gas into the mixing zone via the intake zone. The intake pipe is for introducing an air into the mixing zone. A centerline of the intake pipe is not intersected with a centerline of the second chamber, so as to induce a vortex flow field of the air flowing into the mixing zone for mixing the air and the second fuel gas.

Patent Agency Ranking