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公开(公告)号：US20240157484A1
公开(公告)日：2024-05-16
申请号：US18416936
申请日：2024-01-19
Applicant: HARBIN INSTITUTE OF TECHNOLOGY, WEIHAI , HARBIN INSTITUTE OF TECHNOLOGY -WEIHAI INNOVATION PARK, WEIHAI
Inventor： Ning Guo , Xin Zhang , Changsheng Xu , Yanbo Tan , Wenxue Luo , Yunlong Fu
IPC: B23K35/02 , B23K35/36 , B23K35/368
CPC classification number: B23K35/0266 , B23K35/3605 , B23K35/368
Abstract: A full slag covering, spatter-free flux-cored welding wire, relating to the technical field of welding material formulations, which includes a flux core and a metal sheath, wherein the flux core is a slag system based on a neutral slag of calcium oxide-titanium dioxide-aluminum oxide; and molten drops are prevented from flying out to form spatters under the action of liquid slag in a welding process. The flux core is composed of rutile, fluoride, titanate, aluminum powder, manganese powder, chromium powder, molybdenum powder and iron powder, and mass percentages of respective components are: 15%-35% rutile, 15%-35% fluoride, 3%-7% calcium titanate, 5%-10% aluminum powder, 10%-20% manganese powder, 3%-5% chromium powder, 3%-15% molybdenum powder, and a remainder is iron powder or nickel powder. The present welding wire solves the technical problems of weld spatter and poor stability in the traditional welding process.
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公开(公告)号：US11916271B2
公开(公告)日：2024-02-27
申请号：US17851512
申请日：2022-06-28
Applicant: Harbin Institute of Technology , Chongqing Research Institute of Harbin Institute of Technology
Inventor： Xiaohong Wu , Songtao Lu , Wei Qin , Xin Jia , Yuan Yao , Yang Li
Abstract: The present disclosure discloses a stable and high-capacity neutral aqueous redox flow lithium battery based on redox-targeting reaction and belongs to the technical field of flow lithium batteries. The present disclosure solves the technical problem that an existing flow battery can only work at low current density. The flow lithium battery of the present disclosure includes a positive electrode storage tank and a negative electrode storage tank; the positive electrode storage tank is filled with a positive electrolyte; and the negative electrode storage tank is filled with a negative electrolyte. The flow lithium battery is characterized in that the positive electrolyte includes a salt containing [Fe(CN)6]4− and/or [Fe(CN)6]3−, and the positive electrode storage tank is further filled with LFP particles and/or FP particles. The flow lithium battery of the present disclosure has wide application prospects in the field of large-scale energy storage.
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公开(公告)号：US11436451B2
公开(公告)日：2022-09-06
申请号：US17577099
申请日：2022-01-17
Applicant: Harbin Institute of Technology (Shenzhen) (Shenzhen Institute of Science and Technology Innovation, Harbin Institute of Technology) , Dongguan University of Technology
Inventor： Qing Liao , Ye Ding , Binxing Fang , Xuan Wang
IPC: G06K9/62
Abstract: The present disclosure provides a multimodal fine-grained mixing method and system, a device, and a storage medium. The method includes: extracting data features from multimodal graphic and textual data, and obtaining each composition of the data features, the data features including a visual regional feature and a text word feature; performing fine-grained classification on modal information of each composition of the data features, to obtain classification results; and performing inter-modal and intra-modal information fusion on each composition according to the classification results, to obtain a fusion feature. The method enables a multimodal model to utilize a complementary characteristic of the multimodal data, with no influence by irrelevant information.
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公开(公告)号：US11423260B1
公开(公告)日：2022-08-23
申请号：US17589888
申请日：2022-01-31
Applicant: Harbin Institute of Technology (Shenzhen) (Shenzhen Institute of Science and Technology Innovation, Harbin Institute of Technology) , Dongguan University of Technology
Inventor： Qing Liao , Binxing Fang , Ye Ding
IPC: G06K9/62
Abstract: The present disclosure provides an anomaly detection method and apparatus for multi-type data. According to the anomaly detection method for multi-type data, an adversarial learning network is trained, so that a generator in the adversarial learning network fits a distribution of a normal training sample and learns a potential mode of the normal training sample, to obtain an updated adversarial learning network, an anomaly evaluation function in the updated adversarial learning network is constructed according to a reconstruction error generated during training, and the updated adversarial learning network is constructed into an anomaly detection model, to perform anomaly detection on inputted detection data by the anomaly detection model, to obtain an anomaly detection result. A mode classifier is introduced to effectively resolve difficult anomaly detection when a distribution of detected data is similar to that of normal data, further improving the accuracy of anomaly detection.
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公开(公告)号：US20230050445A1
公开(公告)日：2023-02-16
申请号：US17936866
申请日：2022-09-30
Applicant: Harbin Institute of Technology , Zhong Dian Jian Ji Jiao Expresswayinvestment Development Co., Ltd. , Harbin Institute of Technology (Beijing) Industrial Technology Innovation Research Institute Co.,Ltd
Inventor： Yong DING , Zhiqiang ZHANG , Jian LIU , Tong ZHOU , Xianzhuo JIA , Ying CHANG , Bin ZHU , Guang CHEN , Cong ZENG
Abstract: A bridge structure dynamic response of a bridge structure under the action of heavy duty vehicle load is obtained through sensors arranged on the bridge structure; according to vertical vibration acceleration ao and vertical deflection yo of the bridge at a center of gravity o of the heavy duty vehicle and speed of the heavy duty vehicle Uvehicle, a response of a table top of a vibration table is reconstructed, and interaction force of the vehicle-bridge coupling model is obtained; a nonlinear finite element model of the bridge structure is established, and the vehicle-bridge interaction force is taken as external force, and the dynamic response of the bridge structure is taken as a structural response, and modification of the finite element model of the bridge structure is completed through a nonlinear parameter identification method. The invention is mainly used for updating a bridge model.
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Patent Agency Ranking
公开(公告)号：US20220336838A1
公开(公告)日：2022-10-20
申请号：US17851512
申请日：2022-06-28
Applicant: Harbin Institute of Technology , Chongqing Research Institute of Harbin Institute of Technology
Inventor： Xiaohong Wu , Songtao Lu , Wei Qin , Xin Jia , Yuan Yao , Yang Li
Abstract: The present disclosure discloses a stable and high-capacity neutral aqueous redox flow lithium battery based on redox-targeting reaction and belongs to the technical field of flow lithium batteries. The present disclosure solves the technical problem that an existing flow battery can only work at low current density. The flow lithium battery of the present disclosure includes a positive electrode storage tank and a negative electrode storage tank; the positive electrode storage tank is filled with a positive electrolyte; and the negative electrode storage tank is filled with a negative electrolyte. The flow lithium battery is characterized in that the positive electrolyte includes a salt containing [Fe(CN)6]4− and/or [Fe(CN)6]3−, and the positive electrode storage tank is further filled with LFP particles and/or FP particles. The flow lithium battery of the present disclosure has wide application prospects in the field of large-scale energy storage.
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公开(公告)号：US11170786B1
公开(公告)日：2021-11-09
申请号：US17334790
申请日：2021-05-30
Abstract: The present disclosure proposes a federated speaker verification method based on differential privacy, including: 1. performing, by a server, UBM pre-training to obtain an initial UBM; 2. receiving, by the client, the pre-trained initial UBM, and performing initial UBM learning based on local private speech data; 3. performing, by the client, differential privacy protection based on learned statistics; 4. aggregating, by the server, statistics uploaded by multiple clients, and updating the initial UBM; and 5. receiving, by the client, the updated UBM, performing adjustment based on the local private speech data to obtain a GMM for a user of the client, and determining, based on the updated UBM and the GMM, whether a to-be-verified speech is generated by the user of the client.
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公开(公告)号：US20250052792A1
公开(公告)日：2025-02-13
申请号：US18517012
申请日：2023-11-22
Applicant: HARBIN INSTITUTE OF TECHNOLOGY
Inventor： Caiyun MO , Guoqing ZHANG , Wenbin YU , Yuxin ZHANG , Ying XU , Zhizhong GUO
IPC: G01R15/24
Abstract: Optical calculation method and system for relay protection based on Faraday magneto-optical rotation effect are provided. A cascaded optical computing approach is employed, where three optical current transformers are connected in series on a single optical path. Final output optical signal represented as a cascaded multiplication of outputs of three optical current transformers, carries a Faraday rotation angle containing differential current information. Differential current required for protection is computed by modulation ratio which is calculated by use of a carrier and modulation wave signals of the output optical signal detecting by filtering circuit from the third optical current transformer.
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公开(公告)号：US12204081B1
公开(公告)日：2025-01-21
申请号：US18812680
申请日：2024-08-22
Applicant: Harbin Institute of Technology
Inventor： Jian Liu , Chenguang Liu , Zijie Hua , Xiaoyu You
Abstract: This application relates to the technical field of confocal microscopy measurement and provides a dark-field confocal microscopy measurement apparatus and method based on time-varying fractional-order vortex demodulation. The apparatus includes a time-varying modulated illumination module, an optical scanning module, a signal collection and demodulation module, a function generator, and a sample platform. The function generator is separately connected with. The time-varying modulated illumination module is configured to emit fractional-order vortex light to the optical scanning module. The optical scanning module is configured to transmit the fractional-order vortex light to the to-be-measured sample on the sample platform and transmit a reflected light signal to the signal collection and demodulation module. The signal collection and demodulation module is configured to collect the reflected light signal, and perform dark-field confocal detection on the reflected light signal based on a reference signal, to obtain measurement information of the to-be-measured sample.
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公开(公告)号：US20240403518A1
公开(公告)日：2024-12-05
申请号：US18642930
申请日：2024-04-23
Applicant: Harbin Institute of Technology
Inventor： Wei GUAN , Yan ZHOU , Chao ZHANG , Jun WANG , Hengshan HU
IPC: G06F30/25 , G06F111/10 , G06F113/08
Abstract: Provided are a method and a system for randomly generating a porous medium model. The method includes following steps: setting a porosity, resolution and a size of a pre-generated porous medium model; initializing the porous medium model and generating position information of particles; extracting particle profile edges; obtaining filled particles; carrying out a collision detection on the filled particles and preset particles, and determining effectiveness of a particle generation position; presetting a cyclic pop-up condition, and if a judgment result meets the cyclic pop-up condition, continuing; otherwise, updating Fourier parameters; adding a particle configuration meeting the cyclic pop-up condition to a model generation area, and storing parameters; determining whether the generated model meets preset generation requirements, and if so, outputting a porous medium model.
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