公开(公告)号：US20250072812A1

公开(公告)日：2025-03-06

申请号：US18808099

申请日：2024-08-19

Applicant: SOUTHEAST UNIVERSITY

Inventor： Baoguo XU ,  Zelin GAO ,  Xinhao YANG ,  Aiguo SONG

IPC: A61B5/374 ,  A61B5/00

Abstract: Disclosed is an EEG recognition method for a natural hand movement based on a time-domain and frequency-domain multi-layer brain network, including: (1) acquiring a multi-channel EEG signal of the natural hand movement; (2) preprocessing the multi-channel EEG signal, and extracting a δ wave, a θ wave, a α wave, a β wave, and a γ wave at each time point; (3) constructing a time-domain multi-layer brain network using a wSAR model; (4) calculating the frequency-domain multi-layer brain network using the phase-amplitude coupling; (5) combining the time-domain multi-layer brain network and the frequency-domain multi-layer brain network, and performing standardization; and (6) calculating metrics of the time-domain and frequency-domain multi-layer brain network and a super-adjacency matrix of a decomposed time-domain and frequency-domain multi-layer brain network, inputting the same to a two-layer graph convolutional network (GCN), and fusing manual, shallow, and deep features for analysis.

公开(公告)号：US20250023910A1

公开(公告)日：2025-01-16

申请号：US18548937

申请日：2023-06-26

Applicant: SOUTHEAST UNIVERSITY

Inventor： Hua WU ,  Jinfeng CHEN ,  Guang CHENG ,  Xiaoyan HU

IPC: H04L9/40

Abstract: A method for detecting slow HTTP DoS (SHD) attacks in a backbone network can detect three different types of SHID attacks. The method is divided into an off-line training phase and an on-line detection phase. In the off-line training phase, several types of representative unidirectional traffic features are extracted according to attack characteristics of different SHD types and corresponding feature groups are built, where these features can effectively deal with a large amount of unidirectional traffic in backbone networks; a public backbone network dataset is systematically sampled and data are stored in combination with Count-min Sketch, which greatly minimizes storage and computational overhead required in the backbone networks; and a specific machine learning algorithm is used for training to obtain attack detection models. The method can be used for detecting and warning SHD attacks in mass traffic scenarios such as backbone networks to provide a basis for maintaining network security.

公开(公告)号：US20250005699A1

公开(公告)日：2025-01-02

申请号：US18705549

申请日：2023-01-06

Applicant: SOUTHEAST UNIVERSITY

Inventor： Jie MA ,  Qianlian Wang ,  Jingxu Chen

IPC: G06Q50/47 ,  G06Q10/047

Abstract: Provided in the present invention is a passenger-vehicle matching method for an online ride sharing. In the present invention, firstly, matching is performed on passengers by using an integer linear programming algorithm, so as to form a passenger combination scheme involving the optimal total travel time of the passengers; and secondly, in the present invention, virtual passenger combinations or virtual vehicles are supplemented, such that the number of passenger combinations is the same as the number of vehicles, and the passenger combinations are matched with the vehicles by using the integer linear programming algorithm again, so as to obtain a passenger-vehicle matching scheme involving the optimal total travel time. The present invention optimizes the passenger-vehicle matching process in online ride-hailing shared travel, enhancing user experience and efficiency, while also promoting a green traffic mode that significantly reduces urban traffic pressure and pollution.

公开(公告)号：US12183818B2

公开(公告)日：2024-12-31

申请号：US17417677

申请日：2019-12-23

Applicant: SOUTHEAST UNIVERSITY ,  CSMC TECHNOLOGIES FAB2 CO., LTD.

Inventor： Weifeng Sun ,  Rongcheng Lou ,  Kui Xiao ,  Feng Lin ,  Jiaxing Wei ,  Sheng Li ,  Siyang Liu ,  Shengli Lu ,  Longxing Shi

IPC: H01L29/78 ,  H01L21/04 ,  H01L29/10 ,  H01L29/16 ,  H01L29/66

Abstract: A power semiconductor device includes: a substrate; drain metal; a drift region; a base region; a gate structure; a first conductive type doped region contacting the base region on the side of the base region distant from the gate structure; a source region provided in the base region and between the first conductive type doped region and the gate structure; contact metal that is provided on the first conductive type doped region and forms a contact barrier having rectifying characteristics together with the first conductive type doped region below; and source metal wrapping the contact metal and contacting the source region.

公开(公告)号：US12174086B2

公开(公告)日：2024-12-24

申请号：US17784806

申请日：2021-09-23

Applicant: Southeast University

Inventor： Qimin Xu ,  Xu Li

IPC: G01M17/007 ,  G07C5/00 ,  G08G1/01

Abstract: Disclosed are a Type-II Autonomous Emergency Braking System (AEBS) test and evaluation device and method based on a BeiDou space-time reference, where the device includes three parts: a roadside-end information acquisition module, a vehicle-end information acquisition module, and an integrated information processing module. The roadside-end information acquisition module can acquire accurate message sending time by means of a BeiDou time service unit: the vehicle-end information acquisition module can acquire accurate time of receiving a roadside-end message, information acquired by a combined inertial navigation unit, and audio/vibration information acquired by a Single Chip Microcomputer (SCM) embedded unit; and the integrated information processing module can implement accurate, quantitative test and evaluation of indexes such as a vehicle-road communication delay and warning signal sending time. The method of the present disclosure performs data analysis and processing based on a globally unified BeiDou space-time reference and by means of a Support Vector Machine (SVM)-based dynamic Hermite interpolation method, which has an accurate test and evaluation result. Further, the method does not have any requirements for a communication system of the type-II AEBS, thus achieving convenient testing and a wide range of application.

公开(公告)号：US20240393315A1

公开(公告)日：2024-11-28

申请号：US18444886

申请日：2024-02-19

Applicant: Southeast University

Inventor： Fengjuan Wang ,  Yuncheng Wang ,  Jinyang Jiang ,  Song Mu ,  Zhiyong Liu ,  Yingze Li

IPC: G01N33/38

Abstract: A calculation method for service life of concrete in a plateau environment considering protection and restoration effects is provided and includes a construction of a model based on a coupling effect of multi-factors of temperature-humidity-salt concentration-load under the plateau environment, simulation of protection and restoration effects, and quantification of service life. The model includes the physical fields of temperature conduction with variable boundary conditions, water dry-wet cycle transport, salt ion transport, and force fields caused by internal and external loads. The simulation of protection and restoration effects include: surface protective coating, damage restoration, and rebar corrosion resistance. The calculation method can simulate the internal temperature, humidity, stress response, and service life of concrete under different plateau environments using the surface protective coating, damage restoration material, and rebar corrosion resistance material, or a combination of protective and damage restoration materials simultaneously.

公开(公告)号：US20240375682A1

公开(公告)日：2024-11-14

申请号：US18259378

申请日：2022-02-25

Applicant: Southeast University

Inventor： Xu LI ,  Weiming HU ,  Jinchao HU ,  Kun WEI ,  Qimin XU

IPC: B60W60/00 ,  B60W50/00

Abstract: A method of making a highly humanoid safe driving decision for an automated driving commercial vehicle, includes: collecting synchronously multi-source information on driving behaviors in typical traffic scenarios, constructing an expert trajectory data set representing driving behaviors of excellent drivers; simulating the driving behaviors of excellent drivers by utilizing a generative adversarial imitation learning (GAIL) algorithm, in a comprehensive consideration of influences of factors such as a forward collision, a backward collision, a transverse collision, a vehicle roll stability and a driving smoothness on a driving safety, constructing a generator and a discriminator by utilizing a proximal policy optimization algorithm and a deep neural network respectively, and establishing a safe driving decision-making model with highly humanoid level; and training the safe driving decision-making model to obtain safe driving policies under different driving conditions and to implement an output of an advanced decision-making for the automated driving commercial vehicle.

公开(公告)号：US12138575B2

公开(公告)日：2024-11-12

申请号：US18012098

申请日：2021-12-20

Applicant: SOUTHEAST UNIVERSITY

Inventor： Huiyan Zhang ,  Shuping Zhang ,  Bo Peng ,  Rui Xiao

IPC: B01D5/00 ,  C10B53/00 ,  C10G1/00

Abstract: The present disclosure relates to a pyrolysis bio-oil fractional condensation device and method capable of cooling medium self-circulation. The device includes a primary condensation system, a secondary condensation system and a cooling medium self-regulation heat exchange system. The primary condensation system uses the temperature-regulated cooling medium to condense the macromolecular tar by direct heat exchange with the pyrolysis volatiles. The condensed tar is heated, pushed and scraped with a rotary mechanism to prevent adhesion. The spray liquid in the secondary condensation system exchange heat with the uncondensed volatiles directly for secondary condensation. The cooling medium self-regulation heat exchange system realizes self-circulation and self-balance of the cooling medium mass flow and energy flow by integrating heat absorption during biomass raw material feeding and drying, heat release during volatiles condensation, and heat absorption during pyrolysis char cooling, and realized the independent operation of the condensation device in the mobile biomass pyrolysis system.

公开(公告)号：US12131645B1

公开(公告)日：2024-10-29

申请号：US18673873

申请日：2024-05-24

Applicant: HEFEI UNIVERSITY OF TECHNOLOGY ,  SOUTHEAST UNIVERSITY ,  HEFEI UNIVERSITY OF TECHNOLOGY DESIGN INSTITUTE (GROUP) CO., LTD

Inventor： Weihua Zhang ,  Yangyang Gan ,  Zhongxiang Feng ,  Zeyang Cheng ,  Zhibin Li ,  Jian Lu ,  Chun Wang ,  Wenjia Zhu ,  Heng Ding ,  Ye Yu ,  Haijian Bai

IPC: G08G1/16

CPC classification number: G08G1/167

Abstract: Embodiments of the present disclosure provide a method for lane changing decision for vehicles on expressways considering safety risks in a networked environment, which is applicable to a multi-lane expressway. The method includes collecting a demand for lane change of a target vehicle; collecting a roadway and a lane where the target vehicle is located; collecting intervals between the target vehicle and a front vehicle and a rear vehicle on a lane that is switching into; determining a lane change direction of the vehicle; and executing a lane change operation by the target vehicle. A lane changing decision model provided in the embodiments of the present disclosure helps to improve the efficiency of lane change and the safety of lane change in expressways and provides a support for changing lanes in a multi-lane expressway.

公开(公告)号：US20240354459A1

公开(公告)日：2024-10-24

申请号：US18702812

申请日：2023-11-20

Applicant: SOUTHEAST UNIVERSITY

Inventor： Yacheng SONG ,  Zhiyu PANG ,  Dongqing HAN ,  Yinan DONG ,  Zhehao SONG

IPC: G06F30/13

CPC classification number: G06F30/13

Abstract: The method includes the following steps: first establishing urban street and urban plot elements, delineating publicly used parts of public and private property areas as streets, and delineating boundaries of privately owned land as plots; after defining urban streets and urban plots, obtaining accessibility levels of the street elements through depth, connectivity, and low connection rate, where the accessibility level of an urban plot includes an external value and an internal value, the external value is obtained through the levels of urban streets connected to the plot, and the internal value is obtained through the delineation of interlocking structure, basic structure, cul-de-sac structure, and embedding structure types of the urban plot and the urban streets; and based on calculation results of the accessibility levels of the urban streets and urban plots, making judgments from four aspects: upper level planning, commercial system, community system, and historic resources.