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191.发明申请公开(公告)号：US20220309200A1
公开(公告)日：2022-09-29
申请号：US17610042
申请日：2020-10-29
Applicant: SOUTHEAST UNIVERSITY
Inventor： Junyan YANG , Xiao ZHU , Yi SHI , Qingyao ZHANG , Xun ZHANG , Beixiang SHI
Abstract: The present invention discloses a dynamic interactive simulation method for recognition and planning of an urban viewing corridor. The method includes: constructing a sand table of morphology data of an urban space around an urban viewing point; creating a visual sphere, calculating a blocking point set, acquiring a three-dimensional view field of the viewing point, and obtaining an effective projection plane of a sight line of the viewing point; extracting a visual three-dimensional road model, calculating projection curvatures of road centerlines at points equidistant from each other, and screening and recognizing a viewing corridor; collecting a real scene, and inputting the collected real scene to a three-dimensional interactive display platform; inputting a new planning scheme to the three-dimensional interactive display platform, and simulating an urban viewing corridor with the planning scheme superimposed; and outputting, by using augmented reality glasses, a dynamic interactive VR scene of the urban viewing corridor space after the urban planning scheme is superimposed. The present invention combines a real dynamic viewing process, and uses a three-dimensional interactive display platform for planning simulation and interactive output, thereby providing a basic rational support for further optimization and decision-making of urban planning and design.
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公开(公告)号：US20220271435A1
公开(公告)日：2022-08-25
申请号：US17608695
申请日：2021-04-15
Applicant: SOUTHEAST UNIVERSITY
Inventor： Zhangcheng HAO , Yiwen WU
Abstract: A dual-band shared-aperture antenna array based on a dual-mode parallel waveguide is applicable to the field of wireless communications technologies. The dual-band shared-aperture antenna array includes: a waveguide-substrate integrated waveguide transition structure, a multi-stage cascaded power splitter, a transverse coupling slot, a longitudinal coupling slot, a matching through-hole, a shared-aperture dual-mode parallel waveguide, and a shared-aperture parallel slot array. The entire structure includes two dielectric substrates. A signal is input to the multi-stage cascaded power splitter through the waveguide-substrate integrated waveguide transition structure located on a bottom-layer substrate. The foregoing dual-band shared-aperture antenna array based on a dual-mode parallel waveguide can separately implement a low-band fixed-beam slot array antenna, a high-band multi-beam long slot leaky-wave antenna, or a fixed-beam slot array antenna. It has a simple structure, multiple functions, high integration, a small size and light weight.
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公开(公告)号：US20220263554A1
公开(公告)日：2022-08-18
申请号：US17629181
申请日：2020-04-22
Applicant: SOUTHEAST UNIVERSITY
IPC: H04B7/06 , H04B7/0417
Abstract: The present invention discloses a massive multiple-input multiple-output (MIMO) beam domain robust precoding transmission method and system. The method is based on base station (BS)-side and user-side refined sampling steering vector matrices, and considers the influence of channel aging caused by mobility, where obtained channel state information is refined beam domain a posteriori statistical channel information including channel mean and variance information. In the present invention, the BS performs robust precoding transmission by using the refined beam domain a posteriori statistical channel information, where a channel model on which the adopted refined beam domain a posteriori statistical channel information depends is a channel model which corresponds to a refined sampling space angle and adopts a steering vector matrix; the used statistical channel information is more sufficient and accurate, so that the problem of universality of massive MIMO to various typical mobile scenarios under the condition that the antenna size is limited can be solved; and high spectral efficiency is achieved, and the provided robust precoding design utilizes the sparsity of a beam domain channel and the structural characteristics of a sampling steering vector matrix, so that the calculation complexity can be greatly reduced.
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公开(公告)号：US20220227609A1
公开(公告)日：2022-07-21
申请号：US17352380
申请日：2021-06-21
Applicant: Southeast University
Inventor： Hui JIN , Haihan JIAO , Zhaozhong LI , Guansi LIU , Libin WANG
Abstract: Disclosed are an integral lifting system and lifting method for assembled members. The integral lifting system includes fixing mechanisms and more than four vertical stand columns. The four vertical stand columns are located at four corners of a building, the building is located in a region encircled by the vertical stand columns, a transverse rail beam is disposed between every two vertical stand columns, one end of the transverse rail beam is mounted at the top of one vertical stand column, and the other end is mounted on the top of the other stand column. The transverse rail beam is provided with an operation trolley, a jib crane is disposed on an upper surface of the operation trolley, and a lifting mechanical arm is disposed on an outer side surface of the operation trolley. A hydraulic jacking mechanism is disposed at the bottoms of the vertical stand columns.
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公开(公告)号：US11322606B2
公开(公告)日：2022-05-03
申请号：US16969437
申请日：2019-10-21
Applicant: SOUTHEAST UNIVERSITY
Inventor： Weifeng Sun , Siyang Liu , Sheng Li , Chi Zhang , Xinyi Tao , Ningbo Li , Longxing Shi
IPC: H01L29/778
Abstract: A heterojunction semiconductor device comprises a substrate; a second barrier layer is disposed on the second channel layer and a second channel is formed; a trench gate structure is disposed in the second barrier layer; the trench gate structure is embedded into the second barrier layer and is composed of a gate medium and a gate metal located in the gate medium; an isolation layer is disposed in the second channel layer and separates the second channel layer into an upper layer and a lower layer; a first barrier layer is disposed between the lower layer of the second channel layer and the first channel layer and a first channel is formed; a bottom of the metal drain is flush with a bottom of the first barrier layer; and a first metal source is disposed between the second metal source and the first channel layer.
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Patent Agency Ranking
公开(公告)号：US20220113272A1
公开(公告)日：2022-04-14
申请号：US17270050
申请日：2020-04-26
Applicant: Southeast University
Inventor： Zhen ZHU , Mi WANG , Yingying WANG , Qingan HUANG
Abstract: Disclosed a passive wireless sensor for detecting discrete droplets and bubbles. A first inductor channel and a second inductor channel are disposed opposite each other to form a capacitor channel, the first inductor channel is connected to the second inductor channel to form a resonant circuit. When a detection object passes through the detection channel, the permittivity between the first inductor channel and the second inductor channel changes and consequently a capacitance value of the capacitor channel changes, thus resulting in a change in resonant frequency of the resonant circuit. A readout device is used to read the resonant frequency of the resonant circuit and perform detection according to the resonant frequency to obtain information of a corresponding detection object.
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公开(公告)号：US11302072B2
公开(公告)日：2022-04-12
申请号：US16629312
申请日：2018-06-06
Applicant: SOUTHEAST UNIVERSITY
Inventor： Junyan Yang , Beixiang Shi , Jun Cao , Tanhua Jin
IPC: G06G7/48 , G06T17/10 , G06T19/00 , G06F30/13 , G06F111/20
Abstract: A system for constructing an urban design digital sand table, the system includes the following modules. A sand table environment constructing module, configured to construct a digital environment of the urban design sand table. An element grading display module, configured to perform hierarchical management on urban design elements, and perform visual hierarchical display. A spatial indicator interpretation module, configured to articulate names, algorithms, and attributes for indicators in an indicator library of the urban design digital sand table. A spatial calculation tool module, configured to load a toolkit to calculate a selected range in the digital sand table. An offline data extraction module, configured to extract the data of the digital sand table so as to export two-dimensional or three-dimensional spatial data in an offline mode. A dynamic real-time editing module, configured to perform real-time editing operation on an urban digital design scheme loaded in the system.
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公开(公告)号：US11271467B2
公开(公告)日：2022-03-08
申请号：US16979536
申请日：2020-02-27
Applicant: SOUTHEAST UNIVERSITY
Inventor： Wei Hua , Peixin Wang , Gan Zhang , Baoan Wang , Ming Cheng
Abstract: A coaxial double-rotor variable-speed electromagnetic drive includes an external rotor, an end cover, a load shaft, a stator, and an internal rotor, the external rotor, the load shaft, the stator, and the internal rotor being coaxially arranged. The end cover includes a first end cover and a second end cover that are respectively disposed at two ends of the drive, the external rotor is slidably connected to the two end covers separately by bearings, the load shaft is slidably connected to the first end cover and the inner side of the external rotor separately by bearings, the stator is fixed on the inner side of the first end cover and disposed inside the external rotor, air gaps are kept separately between the stator and the internal rotor and between the stator and the external rotor, the internal rotor is sleeved on the load shaft and is disposed inside the stator.
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公开(公告)号：US11242908B2
公开(公告)日：2022-02-08
申请号：US16612403
申请日：2018-08-24
Applicant: SOUTHEAST UNIVERSITY
Inventor： Tong Guo , Ruizhao Zhu
Abstract: Disclosed is a self-centering viscous damper with pre-pressed ring springs. The self-centering viscous damper with pre-pressed ring springs comprises a first inner cylinder, a second inner cylinder, a third inner cylinder, an outer cylinder, a first end cover, a second end cover, a piston, a piston rod, a ring spring, a first connector, a second connector, a first linking nut, a second linking nut, a first outer cover, a second outer cover, a first end and a second end. Due to the interaction between the inner and outer cylinders, the ring springs are further pressed whether a damper is tensioned or pressed. The ring springs have been applied with pre-pressure which overcomes a frictional force and a restoring force when the ring springs are in an initial equilibrium position.
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公开(公告)号：US20220011214A1
公开(公告)日：2022-01-13
申请号：US17270052
申请日：2020-04-26
Applicant: Southeast University
Inventor： Zhen ZHU , Mi WANG , Zhao ZHANG , Qingan HUANG
IPC: G01N15/10
Abstract: Disclosed is a passive wireless device for microfluidic detection of multi-level droplets. A primary inductor channel and a secondary inductor channel each comprise two layers of inductance coils, and the inductance coils of the primary inductor channel and the secondary inductor channel are alternately arranged in each layer. A double-resonance circuit is formed after a liquid conductive material is injected. A first part of a detection channel is disposed between a primary capacitor channel, and a second part of a detection channel is disposed between a secondary capacitor channel. A reading device is used to read a resonant frequency of the double-resonance circuit, and perform detection according to the resonant frequency to obtain information of a corresponding first droplet group and/or second droplet group.
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