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公开(公告)号：US12285747B2
公开(公告)日：2025-04-29
申请号：US18459263
申请日：2023-08-31
Applicant: Harbin Institute of Technology
Inventor： Panpan Wang , Han Wang , Jun Ma , Shiyi Qiu , Junda Yi
Abstract: A method of utilizing humic acid to prepare layered humic acid/manganese oxide composite catalyst and its application, the method includes the steps of: adding sodium hypochlorite, manganese salt and humic acid to a water source, stirring and mixing; then introducing into a filter device having a filter material of manganese and a support medium, and generating a layered humic acid/manganese oxide composite catalyst on a surface of the filter material while directing a continuous water flow of the water source into the filter device with a short empty bed contact time for a short time. The catalyst can be used to effectively remove manganese to maintain an effluent with a Mn2+ concentration of not more than 20 μg/L and to effectively remove heavy metals such as iron, manganese, arsenic, thallium, molybdenum or lead from the water source under neutral, acidic or alkaline conditions with a removal rate of 95% more.
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12.发明授权公开(公告)号：US12267538B2
公开(公告)日：2025-04-01
申请号：US18210142
申请日：2023-06-15
Applicant: HARBIN INSTITUTE OF TECHNOLOGY, SHENZHEN
Inventor： Jingjing Luo , Xin Liu , Fu-chun Zheng , Lin Gao , Qinyu Zhang
IPC: H04N21/238 , H04N21/214 , H04N21/2187 , H04N21/24 , H04N21/44 , H04N21/462 , H04N21/61
Abstract: In a real-time video transmission system for a cellular-connected unmanned aerial vehicle (UAV) based on an adaptive bitrate provided by the present disclosure, an on-board computer is loaded and configured on the UAV, such that the UAV can provide multiple video streams with different bitrates for retrieval. A client with a bitrate adaptation unit is set up, allowing the system to adjust the bitrate of the video stream according to network conditions in each time interval. Intranet penetration and port mapping are implemented on the cloud server, enabling the client to obtain, from the cloud server, the real-time video stream captured by the UAV. The present disclosure allows a remote user to watch, through a cellular network, the real-time video stream captured by the UAV.
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公开(公告)号：US20250085559A1
公开(公告)日：2025-03-13
申请号：US18583154
申请日：2024-02-21
Inventor： Jian Liu , Xumin Ding , Xinwei Wang
Abstract: Provided is a combined monolithic uniform lighting device based on lenses and sawtooth gratings. The present invention aims to solve the problem that traditional light absorption curtains cannot ensure that the natural light at each lighting stage can be evenly scattered into a room, making it difficult to form an all-weather uniform sunshine effect. The device includes ten first thin light sheets, ten second thin light sheets, ten third thin light sheets, ten fourth thin light sheets, ten fifth thin light sheets, ten sixth thin light sheets, ten seventh thin light sheets, ten eighth thin light sheets, ten ninth thin light sheets and ten tenth thin light sheets, which are arranged in a matrix to form a daylighting matrix.
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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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Patent Agency Ranking
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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公开(公告)号：US12124228B1
公开(公告)日：2024-10-22
申请号：US18731174
申请日：2024-05-31
Applicant: Harbin Institute of Technology
Inventor： Fazhi Song , Kaixin Liu , Shuaiqi Chen , Yang Liu , Jiubin Tan
CPC classification number: G05B13/0265 , G05B19/19 , G05B2219/34048 , G05B2219/41439 , G05B2219/41453
Abstract: A learning control system for a nano-precision motion stage comprises a closed-loop feedback section including a motion trajectory generator, a feedback controller, a motion stage, and a first Fourier transformer; and a feedforward section including a second Fourier transformer, a learning controller, an iteration backward shift operator, and a Fourier inverse transformer. An iteration experiment count j is initialized as j=1, and a j-th frequency domain feedforward signal is initialized to 0; the system is run to collect a frequency domain error signal and a frequency domain position measurement signal; a (j+1)-th frequency domain feedforward signal is updated; and an iteration experiment count j is incremented by 1. The present disclosure can effectively suppress the influence of external noise and disturbances, and improve convergence performance. Moreover, the present disclosure requires less computation, achieves simple determination of learning gains and strong robustness, and is convenient for engineering applications.
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18.发明公开公开(公告)号：US20240322931A1
公开(公告)日：2024-09-26
申请号：US18612803
申请日：2024-03-21
Applicant: HARBIN INSTITUTE OF TECHNOLOGY
Inventor： Qiyue YU , Jiangxuan LI , Shu LIN
Abstract: The present disclosure relates to the field of communication technologies and in particular to a user-distinguished finite-field resource construction method and a finite-field multiple access system. In order to solve the problem of the limitation of the multiple access resource in the current communication field, the present disclosure employs a user-distinguished finite-field resource construction method to construct a basic-field resource and/or extension-field resource, i.e. finite-field resource. During the use of the finite-field resource, each user sending a binary sequence is assigned one codebook marking symbols that 0 and 1 are respectively mapped into a finite field. The transmitter sends a corresponding finite-field symbol sequence. At the receiver, based on the received finite-field symbols, a finite-field symbol sent by each user can be determined uniquely and thus, a binary symbol sent by each user can be decoded. The present disclosure is applied to the finite-field multiple access system.
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19.发明公开公开(公告)号：US20240321403A1
公开(公告)日：2024-09-26
申请号：US18605776
申请日：2024-03-14
Applicant: Harbin Institute of Technology
Inventor： Yu TIAN , Huihang SUN , Haoran ZHANG , Yiming MENG , Nanqi REN
Abstract: A method of determining nitrous oxide emission of a river based on land-river-atmosphere simulation, includes the steps of: obtaining nitrogen emission from land in each region; dividing the nitrogen emission into a prediction set and a test set; using nitrogen emission prediction set, and geographical variables and climate variables under the nitrogen emission prediction set to process RF regression model training to obtain a trained RF regression model, using nitrogen emission test set, and geographical variables and climate variables under the nitrogen emission test set to process RF regression model training to obtain a trained RF regression model, and outputting a river water quality concentration of each sub-basin in each region; obtaining river hydrological parameters of each sub-basin, inputting the river hydrological parameters and river water quality concentration of each sub-basin to an air-water interface gas exchange model to obtain a total river N2O emission in each sub-basin.
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公开(公告)号：US12079005B2
公开(公告)日：2024-09-03
申请号：US17026342
申请日：2020-07-10
Applicant: Harbin Institute of Technology
Inventor： liang Ding , haibo Gao , ye Yuan , yan Liu , zongquan Deng , shu Li , zhen Liu
CPC classification number: G05D1/0251 , G05D1/0206 , G05D1/0221 , G05D1/0276 , G06F3/011
Abstract: A three-layer intelligence system architecture and an exploration robot are provided. The three-layer intelligence system architecture includes: a digital twin module for creating a virtual exploration environment and a virtual robot according to explored environment data acquired in real time by the exploration robot and robot data of the exploration robot; a virtual reality module for generating a process and a result of the virtual robot executing the control commands in the virtual exploration environment according to the virtual exploration environment, the virtual robot, and control commands of a control personnel for the exploration robot; and a man-machine fusion module for transmitting the control commands and showing the control personnel the process and the result of the virtual robot executing the control commands in the virtual exploration environment, and causing the exploration robot to execute the control commands after acquiring a feedback indicating that the control personnel confirms the control commands.
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