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.

公开(公告)号：US12124593B2

公开(公告)日：2024-10-22

申请号：US17992132

申请日：2022-11-22

Applicant: SOUTHEAST UNIVERSITY

Inventor： Wei Ge ,  Chongyang Li ,  Leidong Zheng ,  Yifei Wang

IPC: G06F21/60 ,  G06F8/41 ,  G06F9/445

CPC classification number: G06F21/602

Abstract: The present disclosure discloses an information security application-oriented reconfigurable system chip compiler and an automatic compilation method. The method includes the following steps: firstly, inputting a source program of a cryptographic algorithm; then, executing a software compilation function syntax check of the source program, and when the check result is passed, performing compilation mapping using a compiler; next, executing the cryptographic algorithm by simulation running using a simulator, and generating a configuration code by a simulator array; and finally, guiding a hardware behavior operation using a binary configuration code file generated by the simulator. The reconfigurable system chip compiler includes a source program input module, a software compilation function verification module, a compilation mapping module, a simulation execution module, a configuration code generation module, and a hardware debugging module.

公开(公告)号：US12110216B2

公开(公告)日：2024-10-08

申请号：US17368801

申请日：2021-07-06

Applicant: SOUTHEAST UNIVERSITY

Inventor： Hui Jin ,  Haihan Jiao ,  Keqin Ding ,  Libin Wang

IPC: B66C9/18 ,  B61K7/04 ,  B66C7/16

CPC classification number: B66C9/18 ,  B61K7/04 ,  B66C7/16

Abstract: A foldable rail-mounted crane stop device includes an actuating device, a slidably fixing device and a braking device. The actuating device is mounted on a crane rail for bearing the pressure of a crane wheel and thereby actuating the braking device, the slidably fixing device is mounted at an end of the crane rail, and the braking device is connected with the slidably fixing device for braking the crane wheel. The device provided by the present invention is used for crane braking at the end of a rail.

公开(公告)号：US20240330396A1

公开(公告)日：2024-10-03

申请号：US18550287

申请日：2023-03-14

Applicant: SOUTHEAST UNIVERSITY

Inventor： Yujian YE ,  Peiling CHEN

IPC: G06F17/11

CPC classification number: G06F17/11

Abstract: A microgrid spatial-temporal perception energy management method based on safe deep reinforcement learning includes: transforming an energy management problem of a microgrid (MG) into a constrained Markov decision process (CMDP), where an agent is an energy management agent of the MG; and solving the CMDP by using a safe deep reinforcement learning method, including: 1) building a feature extraction network combining an edge conditioned convolutional (ECC) network and a long short-term memory (LSTM) network to extract spatial and temporal features in a spatial-temporal operating status of the MG; and 2) endowing the agent with abilities to learn policy value and security simultaneously by using an interior-point policy optimization (IPO) algorithm. The microgrid spatial-temporal perception energy management method based on safe deep reinforcement learning enhances perception on the spatial-temporal operating status of the MG, safeguards the secure operation of the distribution network, and achieves superior energy management policy cost efficiency.

公开(公告)号：US20240328876A1

公开(公告)日：2024-10-03

申请号：US18648462

申请日：2024-04-28

Applicant: SOUTHEAST UNIVERSITY

Inventor： Aiguo SONG ,  Jingjing XU ,  Yuhan CHEN ,  Baoguo XU ,  Huijun LI

IPC: G01L1/22

CPC classification number: G01L1/2287

Abstract: A six-dimensional force sensor elastomer structure based on improved cross beam includes main beams, first floating beams, second floating beams, square corners and thin film strain gauges. Strain gauges are sputtered on the main beams and the first floating beams to form a plurality of sets of Wheatstone bridges. When an input force/moment of a certain dimension acts on the center of an elastomer, the sensor is deformed and resistance values of strain gauges at corresponding positions change, so that output voltages of corresponding bridges are changed.

公开(公告)号：US20240328873A1

公开(公告)日：2024-10-03

申请号：US18655303

申请日：2024-05-05

Applicant: SOUTHEAST UNIVERSITY

Inventor： Aiguo SONG ,  Jingjing XU ,  Yuhan CHEN ,  Baoguo XU ,  Huijun LI

IPC: G01L1/22

CPC classification number: G01L1/2206 ,  G01L1/2262 ,  G01L1/2287

Abstract: A combined structure for thin film sputtering high-precision six-dimensional force sensor includes a cross beam, a double U-shaped beam, a base, a top cover, a bottom cover and thin film strain gauges. Strain gauges are sputtered on the main beam to form six sets of Wheatstone bridges, with three sets on the cross beam and three sets on the double U-shaped beam. The measurement method of the six-dimensional force sensor is that: an input force/moment of a certain dimension acts on the center of the cross beam and the center of the double U-shaped beam, so that the sensor is deformed and resistance values of strain gauges at corresponding positions change, thereby changing output voltages of corresponding bridges.

公开(公告)号：US12099806B2

公开(公告)日：2024-09-24

申请号：US17701137

申请日：2022-03-22

Applicant: SOUTHEAST UNIVERSITY

Inventor： Xinde Li ,  Pei Li ,  Changyin Sun

IPC: G06F40/30 ,  G06F40/268 ,  G06F40/44 ,  G06N5/02 ,  G06N5/04

CPC classification number: G06F40/30 ,  G06F40/268 ,  G06F40/44 ,  G06N5/02 ,  G06N5/04

Abstract: The present disclosure discloses a place recognition method based on knowledge graph inference; and provides, on the basis of giving a knowledge graph construction method in the place field, a recognition method of general places that is based on knowledge graph inference and can integrate various heterogeneous environmental information, including the following steps: (1) extracting main clues such as the main items that make up the place, the produced events, and the spatial structure from various heterogeneous information, and describing these clues in natural language text; (2) screening the foregoing descriptions by using natural language processing methods, to form place description entities; (3) constructing a knowledge graph in the place field according to the occurrence frequencies of the description entities in an actual environment; and (4) implementing inference and classification based on the knowledge graph by using a Deep Neural Network (DNN), to give a final recognition result. The present disclosure improves the place recognition accuracy by means of knowledge graph inference, and greatly improves semantic interpretability in the place recognition process.