公开(公告)号：US20250091974A1

公开(公告)日：2025-03-20

申请号：US18963493

申请日：2024-11-28

Applicant: Beijing Institute of Technology ,  Beijing University of Chemical Technology

Inventor： Xinyi Tan ,  Qunsheng Li ,  Tianwei Tan ,  Hongkang Zhao

IPC: C07C29/78 ,  B01J19/00

Abstract: A device for refining ethanol is disclosed, which includes a fermentation unit, a low-pressure column, a medium-pressure column, a high-pressure column and a membrane separation unit. A method for refining ethanol is disclosed, which specifically includes the following steps: after fermenting the biomass feedstock, feeding fermented mash into a low-pressure column and a high-pressure column which are connected in parallel for refining, mixing two column top distillates, and feeding the mixed column top distillates into a medium-pressure column for further rectification; and purifying the refined ethanol vapor with higher purity obtained after rectification in the medium-pressure column by a membrane separation unit to obtain high-concentration ethanol product vapor. The disclosure couples the differential pressure rectification and the membrane separation unit, adjusts the energy network structure, greatly reduces the vapor usage amount of the whole system, and has the advantages of good separation effect, high product quality and the like.

公开(公告)号：US12253861B2

公开(公告)日：2025-03-18

申请号：US18097833

申请日：2023-01-17

Applicant: BEIJING INSTITUTE OF TECHNOLOGY

Inventor： Bin Xin ,  Sai Lu ,  Lihua Dou ,  Jie Chen ,  Qing Wang ,  Miao Wang

IPC: G05B19/41 ,  G05B19/4155 ,  G05D1/00

Abstract: A multi-robot collaboration method in a flexible hardware production workshop is provided, by which allocation of workpiece machining tasks and transfer of workpieces in different workstations can be achieved and meanwhile relatively high calculation cost is avoided. According to the method, a distributed collaboration method is fully used, and in allusion to the current technical condition, the allocation of the workpiece machining tasks and the transfer of the workpieces in different workstations can be achieved and meanwhile the relatively high calculation cost is avoided. A multi-AGV path conflict eliminating method is used for avoiding possible collision of AGVs during movement. A centralized intervention and adjustment method is used for discovering and predicting system conflicts and failure problems and making timely dispatching and adjustment so as to improve the automation level and the flexibility level of a hardware workshop.

公开(公告)号：US20250043377A1

公开(公告)日：2025-02-06

申请号：US18401294

申请日：2023-12-29

Applicant: BEIJING INSTITUTE OF TECHNOLOGY

Inventor： Zhiping XIONG ,  Dezhen YANG ,  Chao ZHANG ,  Hao ZHANG ,  Xingwang CHENG

IPC: C21D9/46 ,  C21D1/18 ,  C21D6/00 ,  C21D8/02 ,  C22C38/00 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/08 ,  C22C38/12 ,  C22C38/38

Abstract: The embodiments of the present disclosure provide a carbide-free tempered martensitic steel and a preparation method thereof. The carbide-free tempered martensitic steel includes a martensite matrix without carbide and a retained austenite distributed between the martensite matrix obtained after tempering or partitioning. A size of retained austenite is submicron or nanoscale, a morphology of retained austenite includes at least one of sphere, block, or film, and a volume fraction of the retained austenite is in a range of 10%-40%.

公开(公告)号：US20240405089A1

公开(公告)日：2024-12-05

申请号：US18798337

申请日：2024-08-08

Applicant: BEIJING INSTITUTE OF TECHNOLOGY

Inventor： Shujun YE ,  Yeliang WANG

IPC: H01L29/423 ,  H01L27/092 ,  H01L29/417 ,  H01L29/66 ,  H01L29/775 ,  H01L29/786

Abstract: Vertically superimposed lateral gate-all-around metal-oxide-semiconductor field-effect transistors are provided, a structure of a novel three-dimensional integrated circuit such as a CMOS logic circuit that is composed of the vertically superimposed lateral gate-all-around transistors, a random-access memory and the like, and a manufacturing method for the novel three-dimensional integrated circuit are provided. The manufacturing method for the vertically superimposed lateral gate-all-around transistors includes: first preparing a monolayer channel and a source/drain, then protected with a sacrificial layer; preparing an insulating isolation layer, preparing above repeated structures on the insulating isolation layer; preparing an insulating spacer layer between the source/drain and a gate of each of the layers, a gate oxide, a gate, and a source/drain electrode in a unified manner, and finally preparing a connecting wire connected to the outside. The novel three-dimensional integrated circuit can be implemented by connecting the lateral gate-all-around transistors by means of a wire.

公开(公告)号：US12099346B1

公开(公告)日：2024-09-24

申请号：US18648438

申请日：2024-04-28

Applicant: Beijing Institute of Technology

Inventor： Bin Xin ,  Yingmei He ,  Sai Lu ,  Fang Deng ,  Qing Wang ,  Mengjie Jing ,  Jiwei He

IPC: G05B13/04 ,  G05B13/02 ,  G05B19/418

CPC classification number: G05B19/41845 ,  G05B13/0265 ,  G05B13/04

Abstract: Disclosed is a large-scale dynamic double-effect scheduling method for a flexible job shop based on genetic programming (GP). In a GP implementation process of the present disclosure, in addition to features related to workpieces, processing robots and automated guided vehicles (AGVs), such as processing time of working procedures and buffer area waiting time, features of a ratio of processing time to transfer time and a ratio of processing energy consumption to transfer energy consumption are also added in a terminal set to cause job shop environment features to be more comprehensively applied to a scheduling rule design, thereby automatically designing a more consistent and accurate scheduling rule. A double-effect scheduling rule of the present disclosure overcomes the shortcomings of slow convergence speed, difficulty in rapid corresponding changes and unfit scheduling rules, and can quickly produce a more efficient and energy-saving production scheduling scheme.

公开(公告)号：US20240310243A1

公开(公告)日：2024-09-19

申请号：US18398607

申请日：2023-12-28

Applicant: BEIJING INSTITUTE OF TECHNOLOGY

Inventor： Mingfeng LU ,  Tianshan ZHANG ,  Peihang LI ,  Chenchen JI ,  Jinmin WU ,  Yao HU ,  Weidong HU ,  Feng ZHANG ,  Ran TAO

IPC: G01M11/00 ,  G06T7/60

CPC classification number: G01M11/30 ,  G06T7/60 ,  G06T2207/20081 ,  G06T2207/20084 ,  G06T2207/20132

Abstract: The present application relates to an interferogram phase estimation method. The interferogram phase estimation method includes: obtaining an interferogram for estimation of a measured object; and inputting the interferogram for estimation to a neural network model trained based on a method for training a neural network model for interferogram phase estimation, to obtain a phase image corresponding to the interferogram for estimation. In the interferogram phase estimation method of the present application, features of different scales of an interferogram are learned based on a Unet++ neural network model to obtain an accurately estimated phase image corresponding to the interferogram.

公开(公告)号：US20240309999A1

公开(公告)日：2024-09-19

申请号：US18605923

申请日：2024-03-15

Applicant: Beijing Institute of Technology

Inventor： Jianwei Li ,  Chonghao Yan ,  Xinming Wan ,  Xuechao Wang ,  Rongxue Kang ,  Zhiwei Zhao

IPC: F17C13/02 ,  G01M3/32 ,  G06V10/82

CPC classification number: F17C13/025 ,  G01M3/3272 ,  G06V10/82 ,  F17C2260/038

Abstract: The present disclosure provides a method and system for diagnosing a leakage in a hydrogen system for a vehicle, an electronic device, and a storage medium. The method includes: obtaining data of a hydrogen cylinder gas pressure of a fuel cell vehicle; separately performing Gramian angular field transformation and Markov transition field transformation on the pressure data, to obtain static and dynamic feature information; performing, by a static feature LeNet neural network, recognition based on the static feature information, to obtain a probability output of the static feature LeNet neural network; performing, by a dynamic feature LeNet neural network, recognition based on the dynamic feature information, to obtain a probability output of the dynamic feature LeNet neural network; and performing fusion through a Dempster-Shafer (D-S) evidence theory based on the probability output of the static and dynamic feature LeNet neural network, to obtain an excellent hydrogen leakage diagnosis result.

公开(公告)号：US20240288855A1

公开(公告)日：2024-08-29

申请号：US18215266

申请日：2023-06-28

Applicant: Beijing Institute of Technology

Inventor： Jian SUN ,  Runqing WANG ,  Gang WANG ,  Minggang GAN ,  Jie CHEN

IPC: G05B19/418

CPC classification number: G05B19/41865 ,  G05B19/4183

Abstract: The present disclosure provides a flexible job-shop scheduling method and system and an electronic device. The method according to the present disclosure includes: randomly generating a plurality of flexible job-shop environments in a production job-shop according to a preset production target; constructing a scheduling strategy model of the production job-shop based on a Markov decision process; optimizing a feature extraction network, an actor network and a critic network simultaneously by using the scheduling strategy model and a plurality of data sets, and determining a scheduling plan corresponding to a maximum completion time as an optimal scheduling plan after the completion of the optimization; and completing the preset production target based on the optimal scheduling plan. According to the present disclosure, feature extraction is performed on the plurality of job-shop environments to generate a scheduling scheme, so as to improve the efficiency and rationality of flexible job-shop scheduling.

公开(公告)号：US12068717B2

公开(公告)日：2024-08-20

申请号：US17093244

申请日：2020-11-09

Applicant: BEIJING INSTITUTE OF TECHNOLOGY

Inventor： Fang Deng ,  Zelang Liang ,  Ning Ding ,  Xinyu Fan ,  Xin Gao ,  Yeyun Cai ,  Jie Chen

IPC: H02S50/10 ,  G06F18/21 ,  G06F18/2135 ,  G06F18/214 ,  G06F18/241 ,  G06F18/25 ,  G06N3/04 ,  G06N3/084 ,  G06T7/00 ,  G06V10/764 ,  G06V10/774 ,  G06V10/776 ,  G06V10/80 ,  G06V10/82

CPC classification number: H02S50/10 ,  G06F18/2135 ,  G06F18/214 ,  G06F18/217 ,  G06F18/241 ,  G06F18/25 ,  G06N3/04 ,  G06N3/084 ,  G06T7/0002 ,  G06V10/764 ,  G06V10/774 ,  G06V10/776 ,  G06V10/809 ,  G06V10/82 ,  G06T2207/10024 ,  G06T2207/10048 ,  G06T2207/20081 ,  G06T2207/20084

Abstract: A photovoltaic array fault diagnosis method based on composite information is provided. The method includes: collecting and preprocessing composite information data of photovoltaic array working state, including image data and text data; using the image data of photovoltaic array working state to train a pre-established fault classification model of deep convolutional neural network, to thereby obtain an image fault classification model; using the text data of photovoltaic array working state to train a pre-established fault classification model based on a support vector machine, to thereby obtain a text fault classification model; fusing the image fault classification model and the text fault classification model by logistic regression algorithm to obtain a fusion model, and training the fusion model using the composite information data of photovoltaic array working state to thereby obtain the photovoltaic array fault diagnosis model.

公开(公告)号：US12054656B2

公开(公告)日：2024-08-06

申请号：US17276723

申请日：2019-08-02

Applicant: Zhijing Nanotech Co., LTD ,  Beijing Institute of Technology

Inventor： Fei Li ,  Haizheng Zhong ,  Jingjing Wang

IPC: C09K11/02 ,  C09K11/06 ,  C09K11/66 ,  H10K85/30 ,  G02F1/13357 ,  H10K50/115

CPC classification number: C09K11/025 ,  C09K11/06 ,  C09K11/665 ,  H10K85/30 ,  C09K2211/10 ,  C09K2211/181 ,  C09K2211/188 ,  G02F1/133617 ,  H10K50/115

Abstract: The present application discloses a composite light-emitting material, a production method thereof, and use thereof, wherein the composite light-emitting material has a perovskite nanomaterial and a matrix; the perovskite nanomaterial comprises γ-CsPbI3 and an addition element M; and the addition element M is selected from at least one of Li, Na, K, and Rb.