公开(公告)号：US11244197B2

公开(公告)日：2022-02-08

申请号：US16639046

申请日：2018-08-24

Applicant: SOUTHWEST JIAOTONG UNIVERSITY

Inventor： Yuanxin Ye

IPC: G06K9/62 ,  G06K9/46

Abstract: A multimodal remote sensing image matching method and system integrate different local feature descriptors for automatic matching of multimodal remote sensing images. First, a local feature descriptor, such as the Histogram of Oriented Gradient (HOG), the local self-similarity (LSS), or the Speeded-Up Robust Feature (SURF), is extracted for each pixel of an image to form a pixel-wise feature representation map. Then, the three-dimensional Fourier transform (namely 3D FFT) is used to establish a fast matching similarity metric in a frequency domain based on the feature representation map, followed by a template matching scheme to achieve control points (CP) between images. In addition, the novel pixel-wise feature representation technique named channel features of orientated gradients (CFOG), which outperforms the pixel-wise feature representation methods based on the traditional local descriptors (e.g., HOG, LSS and SURF) in both matching performance and computational efficiency.

公开(公告)号：US11110959B2

公开(公告)日：2021-09-07

申请号：US16086507

申请日：2017-04-11

Applicant: Southwest Jiaotong University ,  Qunzhan Li

Inventor： Qunzhan Li

IPC: B62D12/02 ,  B62D13/00 ,  B62D6/00 ,  B62D15/02

Abstract: A trackless train is formed of a locomotive hinged to carriages of N trailers. A controller is provided at the locomotive, wherein an input end of the controller is connected to an output end of a clock, an odometer and the steering angle meter, and an output end of the controller is connected to an input end of the steering mechanism of each one of the trailers via an optical network. The controller can fully describe and control a travelling track of the trackless train, such that the steered wheels of the trailer carriages and the steering drive wheels of the locomotives maintain the same track during travel.

公开(公告)号：US20210265921A1

公开(公告)日：2021-08-26

申请号：US16996927

申请日：2020-08-19

Applicant: Southwest Jiaotong University

Inventor： Xiaoyun FENG ,  Chenglin XIONG ,  Rong MEI ,  Shuang SONG ,  Zhiwei SONG ,  Lu HUANG

IPC: H02M7/539 ,  H02M7/5387 ,  H02M1/00 ,  G05B17/02

Abstract: A modified modulated wave acquisition method includes: obtaining a modulated wave uaba; calculating a difference between the given value iNq* and the actual value iNq of the q-axis component of a grid side current, inputting the result to a proportional integral (PI) controller, and multiplying an output of the PI controller by cos ωt to obtain a modulated wave offset Δuaba; and calculating a difference between the modulated wave uaba and the modulated wave offset Δuaba to obtain a modified modulation wave uaba′, where ωt is a grid voltage phase in a sinusoidal case. The MPC method for a single-phase cascaded H-bridge rectifier includes: obtaining the modified modulated wave uaba′, where the component iNq* is 0; and replacing the modulated wave uaba with the modified modulated wave uaba′ to perform MPC for the single-phase cascaded H-bridge rectifier.

公开(公告)号：US11065983B2

公开(公告)日：2021-07-20

申请号：US16088572

申请日：2017-04-06

Applicant: Southwest Jiaotong University ,  Qunzhan Li

Inventor： Qunzhan Li

IPC: B60M1/30 ,  B60L5/36

Abstract: A railway transportation power supply construction comprising a power supply rail and a return current rail respectively secured on two sides of an insulating base and isolated by the insulating base. A power supply arm and a return current arm are mounted to a bogie of a vehicle and insulated from the vehicle body by means of insulation rings, the bogie provided with a drive mechanism. The power supply arm has a front end connected to one end of an input port of the drive mechanism, and a terminal end in contact with the power supply rail. The return current arm has a front end connected to the other end of the input port of the drive mechanism, and a terminal end in contact with the return current rail. During operation, the power supply arm has friction with the power supply rail to be powered, and the return current arm has friction with the return current rail, enabling the vehicle to travel through a junction section with uninterrupted power supply while the structure and operating condition of a junction remain unchanged.

公开(公告)号：US10954085B2

公开(公告)日：2021-03-23

申请号：US16740472

申请日：2020-01-12

Applicant: SOUTHWEST JIAOTONG UNIVERSITY

Inventor： Zeqiang Zhang ,  Mengke Xie ,  Jin Jiang ,  Yunpeng Li ,  Junqi Liu ,  Shasha Wang ,  Wenming Cheng

IPC: B65G65/23

Abstract: A discharging device for a vinasse tank, including a flipping component and a lifting component. The flipping component includes convex rods externally connected with opposite side surfaces of the tank, and a frame matched with the tank; the frame includes an outer frame and an inner frame; opposite inner supporting rods of the inner frame are provided with C-shaped grooves having openings downward and matched with the convex rods; respective C-shaped grooves include a through hole penetrating through lower parts of groove walls on both sides; a gear lever matched with the through hole and a first driving mechanism for driving the gear lever to move left and right axially along the through hole are arranged in the inner supporting rod; and a second driving mechanism for driving the inner frame to flip is arranged at a joint between the inner supporting rod and an outer supporting rod.

公开(公告)号：US10739379B2

公开(公告)日：2020-08-11

申请号：US16290981

申请日：2019-03-04

Applicant: Southwest Jiaotong University ,  Tsinghua University

Inventor： Linmao Qian ,  Liang Jiang ,  Bin Lin ,  Jianbin Luo ,  Yushan Chen ,  Bin Li

IPC: G01Q70/16 ,  G01Q70/10 ,  G01N19/02 ,  G01Q60/26

Abstract: A method for designing and processing a microcantilever-based probe with an irregular cross section applied in the ultra-low friction coefficient measurement at a nanoscale single-point contact includes: first, establishing a universal theoretical model of the friction coefficient measurement; then, combined with the structural features of the microcantilever-based probe with the irregular cross section, establishing a specific theoretical model of the friction coefficient measurement suitable for the microcantilever-based probe with the irregular cross section; and based on above, combined with constraint conditions such as the friction coefficient resolution, the loadable maximum positive pressure or the measurable minimum friction force, and the atomic force microscope characteristics, etc., designing the microcantilever-based probe with the irregular cross section meeting the measurement requirements.

公开(公告)号：US10736996B2

公开(公告)日：2020-08-11

申请号：US15503172

申请日：2015-08-12

Applicant: Chengdu Southwest Jiaotong University Science And Technology Garden Management Co., Ltd. ,  Chengdu Jiaoda Medical Science And Technology Company Limited

Inventor： Zhilu Yang ,  Nan Huang ,  Jin Wang ,  Yajun Weng

IPC: A61L31/10 ,  A61L31/16 ,  A61K33/00 ,  A61F2/06 ,  C09D7/40 ,  C09D7/61 ,  A61L27/34 ,  A61L27/50 ,  A61L27/54 ,  A61L29/08 ,  A61L29/16 ,  C09D5/00 ,  C09D177/04 ,  C09D177/12 ,  C08K5/13 ,  C08K3/011 ,  A61M25/00 ,  A61M25/09 ,  C08K3/16

Abstract: Disclosed is a method for preparing a nitric oxide-generating adherent coating, comprising: preparing a buffer solution containing polyphenol compounds, organic selenium or sulfur compounds and soluble copper salts; then contacting a base material with the solution, and washing and drying to obtain a target product. The nitric oxide-generating material prepared by the method can be used for any medical device, such as an intravascular stent, or materials and any complex-shaped base material, and has the capability of scavenging free radicals and catalyzing RSNO to produce nitrogen monoxide, and also has a response function of reduced glutathione (GSH), an antimicrobial function and all the physiological functions possessed by nitrogen monoxide.

公开(公告)号：US20200096539A1

公开(公告)日：2020-03-26

申请号：US16347582

申请日：2019-01-11

Applicant: Southwest Jiaotong University

Inventor： Liang JIANG ,  Linmao QIAN ,  Bin LIN ,  Yushan CHEN

IPC: G01Q60/02 ,  G01Q70/02

Abstract: A numerically controlled rotary probe switching device based on an environment-controllable atomic force microscope (AFM) includes a cavity upper cover and a probe switching structure. The cavity upper cover is provided with an irregular rectangular boss, an inner groove, a rectangular optical window structure and a sealing flange structure. The irregular rectangular boss is provided with the rectangular optical window structure; a front end of the boss is provided with the sealing flange structure; and a lower portion of the boss is provided with an inner groove for accommodating the probe switching structure and a transition groove for matching with a linear movement of a sample carrier and a rotary switching of probes. The probe switching structure is configured inside the inner groove, and the probe switching structure is provided with at least one probe assembly.

公开(公告)号：US10236685B2

公开(公告)日：2019-03-19

申请号：US15802438

申请日：2017-11-02

Applicant: Southwest Jiaotong University

Inventor： Zeliang Shu ,  Linghui Meng ,  Wenjun Mao ,  Yuan Lei ,  Yi Qian ,  Xiaoqiong He

IPC: H02J3/06 ,  H02J3/18 ,  H02J3/01 ,  H02M5/458

Abstract: A power electronic voltage transforming apparatus is used in a two-phase to single-phase conversion. The power electronic voltage transforming apparatus is cooperatively used with a three-phase to two-phase transformer to convert the two-phase power output from the three-phase to two-phase transformer into single-phase power. The two-phase to single-phase power electronic voltage transforming apparatus or three-phase to single-phase power electronic voltage transforming apparatus has an input cascade connection structure formed by cascading n converter modules.

公开(公告)号：US20180375326A1

公开(公告)日：2018-12-27

申请号：US15802438

申请日：2017-11-02

Applicant: Southwest Jiaotong University

Inventor： Zeliang SHU ,  Linghui MENG ,  Wenjun MAO ,  Yuan LEI ,  Yi QIAN ,  Xiaoqiong HE

IPC: H02J3/06 ,  H02M5/458 ,  H02J3/01 ,  H02J3/18

Abstract: The present invention provides a power electronic voltage transforming apparatus, which relates to the fields of electrified railway traction power supply technology, the industrial electricity etc. The power electronic voltage transforming apparatus can solve the problems of dynamic control of negative-sequence current, compensation of reactive power and phase separation of traction network, and can also solve the imbalance of voltage and current caused by adding single-phase load in other industrial power applications. The two-phase to single-phase power electronic voltage transforming apparatus or three-phase to single-phase power electronic voltage transforming apparatus has an input cascade connection structure formed by cascading n converter modules.