公开(公告)号：US20200342314A1

公开(公告)日：2020-10-29

申请号：US16749160

申请日：2020-01-22

Applicant: Harbin Institute of Technology (Shenzhen)

Inventor： Qing Liao ,  Hao Han ,  Ye Ding ,  Shuhan Qi ,  Lin Jiang ,  Xuan Wang

IPC: G06N3/08 ,  G06N3/04 ,  G06F9/30 ,  G06F40/284 ,  G06F40/205 ,  G06K9/62 ,  G06F16/9038 ,  G06F16/9035

Abstract: A method, a system, and a computer program product for detecting fake news based on a multi-task learning model. In an embodiment, a multi-task learning model is used to perform joint training on authenticity detection and topic classification of news to be detected, and authenticity of the news to be detected and a topic of the news to be detected are returned simultaneously. Through the implementation of the embodiment of the present invention, the authenticity of the news and the topic of the news can be detected simultaneously, and the accuracy of fake news detection and topic classification is improved.

公开(公告)号：US20200178859A1

公开(公告)日：2020-06-11

申请号：US16707196

申请日：2020-01-08

Applicant: HARBIN INSTITUTE OF TECHNOLOGY, SHENZHEN

Inventor： HUANHUAN FENG ,  QING LIU ,  XING MA ,  TINGTING ZHENG ,  WEIWEI ZHAO ,  JIAHENG ZHANG

IPC: A61B5/145 ,  G01N27/327 ,  D01F11/12

Abstract: The present invention belongs to the technical field of material fabrication, and particularly relates to an ultra-sensitive glucose sensor based on a graphene and carbon fiber substrate and a fabrication method thereof. The method includes fabricating a carbon fiber cloth with vertical graphene growth on a surface thereof, performing pretreatment to make the carbon fiber cloth hydrophilic, directly soaking the carbon fiber cloth in a PBS solution of glucose oxidase with the pH of 7.4, and then taking out and drying the carbon fiber cloth at room temperature to obtain a glucose sensor. According to the present invention, the lower limit of glucose detection reaches about 0.1 mM, and the glucose sensor also has multistage corresponding characteristics, so that different detection coefficients and capabilities can be achieved in different glucose concentration ranges. The application range and precision of the glucose sensor are greatly improved.

公开(公告)号：US20200135158A1

公开(公告)日：2020-04-30

申请号：US16469774

申请日：2017-06-06

Applicant: Yunjiang LOU ,  Harbin Institute of Technology, Shenzhen

Inventor： Shunjie YAO ,  Wudan LOU ,  Yunjiang LOU ,  Yujing CHEN

IPC: G10H7/00 ,  G06F40/30 ,  G06K9/20 ,  G06K9/46 ,  G06T5/00 ,  G06K9/00 ,  G10K15/02 ,  G06F16/635 ,  G06F16/68 ,  G06F16/36

Abstract: The disclosure relates to a system and a method for disposing background music and sound effects based on image processing and semantic analysis. The method includes determining the environment and emotional attributes of a text semantics in a reading page by analyzing and processing an acquired reading page image, and selecting music and sound material to synthesize reading background music and sound effects according to the text semantics, so as to achieve sound enhancement in the reading environment. The system includes an image acquisition device for acquiring a reading image of a user, and a processing device having an operation unit for performing the method.

公开(公告)号：US20190094191A1

公开(公告)日：2019-03-28

申请号：US16199325

申请日：2018-11-26

Applicant: HARBIN INSTITUTE OF TECHNOLOGY SHENZHEN GRADUATE SCHOOL

Inventor： Baiyang CHEN ,  Yinan BU

IPC: G01N30/96 ,  G01N1/34 ,  G01N33/18 ,  G01N1/40

Abstract: A method and system for measuring the content of dissolved organic halide in water. The method includes separating dissolved inorganic halides and dissolved organic halides in water using an electrodialysis technique (S1), which may completely separate the dissolved organic halides and the dissolved inorganic halides, avoid the use of activated carbon and adsorption columns, simplify steps and improve efficiency. The method converts the separated dissolved organic halides into dissolved inorganic halides using a photocatalysis technique (S2), which does not need a special high-temperature combustion device, active carbon and catalysts, and is simple and easy to be performed at room temperature in more environmentally friendly mode. The method also includes analyzing the converted dissolved inorganic halides using a device with an ion analysis function (S3) to analyze and measure a total content index of the dissolved organic halides and an individual content index of each of the dissolved organic halides (fluorine, chlorine, bromine and iodine) in water to be measured.

公开(公告)号：US11940560B2

公开(公告)日：2024-03-26

申请号：US17168089

申请日：2021-02-04

Applicant: Harbin Institute of Technology, Shenzhen

Inventor： Xiaochuan Xu ,  Jiaxin Chen ,  Wanxin Li ,  Yong Yao

IPC: H01Q3/26 ,  G01S7/481 ,  G02B6/124 ,  G02F1/295

CPC classification number: G01S7/4814 ,  G02B6/124 ,  G02F1/2955

Abstract: An ultra-long sub-wavelength grating as an optical antenna for optical phased arrays includes a top structure and a bottom structure which are vertically stacked. The bottom structure is made of a material with a refractive index lower than a refractive index of the top structure. The top structure is made of a material with a refractive index higher than that of the bottom structure. A strip waveguide is disposed in the middle of the top structure. subwavelength blocks are disposed periodically on two sides of the straight strip waveguides. The invention has the following beneficial effects. The structure could increase the effective length of the grating; uniform near field distribution can be achieved by controlling the positions of the subwavelength blocks. The structure is simpler with lower fabrication requirements and lower cost.

公开(公告)号：US20240098319A1

公开(公告)日：2024-03-21

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 ,  H04N21/2187 ,  H04N21/24 ,  H04N21/61

CPC classification number: H04N21/23805 ,  H04N21/2187 ,  H04N21/2402 ,  H04N21/6143

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.

公开(公告)号：US11873412B2

公开(公告)日：2024-01-16

申请号：US17177444

申请日：2021-02-17

Applicant: Harbin Institute of Technology, Shenzhen

Inventor： Huanhuan Feng ,  Min Wang ,  Kunkun Jiang ,  Yueyue Zhang ,  Zhenchao Zhang ,  Weiwei Zhao ,  Xing Ma ,  Jiaheng Zhang ,  Tingting Zheng

IPC: C09D11/50 ,  C09D11/328 ,  C09D11/06 ,  C08K5/42 ,  C08L25/06 ,  C09K11/06 ,  C09D125/06 ,  C09D11/106 ,  C09D11/38 ,  C09D11/30

CPC classification number: C09D11/50 ,  C08K5/42 ,  C08L25/06 ,  C09D11/328 ,  C09K11/06 ,  C08L2205/18 ,  C09K2211/1416 ,  C09K2211/1483

Abstract: Disclosed is an aqueous fluorescent ink and a preparation method and use thereof. The aqueous fluorescent ink provided by the present disclosure includes 0.10%-0.14% of polystyrene micro-spheres, 0.010%-0.014% of fluorescent dyes, 0.4%-0.6% of surfactants, and the balance of water. The present disclosure uses polystyrene micro-spheres as a fluorescent dye carrier, which is colorless and transparent under ordinary daylight and completely invisible, and displays fluorescence only when irradiated by ultraviolet light and has high fluorescence intensity. The surfactant makes the polystyrene fluorescent micro-spheres uniformly dispersed in the fluorescent ink, and the stability of the fluorescent ink is improved. Water is used as a solvent, which has excellent safety and environmental friendliness. The accuracy of the printed patterns can reach 30 μm, which can help realize large-format ultra-high-precision patterned anti-counterfeiting encryption printing. Through precision printing, the two-dimensional code can be implemented with one code for one object, and has excellent anti-counterfeiting ability.

公开(公告)号：US11853449B1

公开(公告)日：2023-12-26

申请号：US18181972

申请日：2023-03-10

Applicant: Harbin Institute of Technology, (Shenzhen) (Shenzhen Int'l Technical Innovation Research Institute)

Inventor： Ximing Fu ,  Chuanyi Liu ,  Mo Li

IPC: G06F21/62 ,  G06F17/16 ,  G06F21/60

CPC classification number: G06F21/6218 ,  G06F17/16 ,  G06F21/602

Abstract: A data processing method based on secure multi-party computation, an electronic device and a storage medium are disclosed. The data processing method requires firstly obtaining original confidential data and shared key information from a data holding terminal; performing a first encrypting process to the original confidential data based on the shared key information to generate original encrypted data; and then sending the original encrypted data to a node server. Further, the node server obtains a plurality of pieces of the original encrypted data, and performs a service parsing process to generate encrypted result data, and sends the encrypted result data to a data reconstruction terminal. Furthermore, the data reconstruction terminal obtains the encrypted result data and the shared key information, and performs a reconstructing process to the encrypted result data according to the encrypted result data and the shared key information to obtain service result data.

公开(公告)号：US11815151B2

公开(公告)日：2023-11-14

申请号：US17901717

申请日：2022-09-01

Applicant: Harbin Institute of Technology, Shenzhen

Inventor： Zuohua Li ,  Qinggui Wu ,  Jun Teng

IPC: F16F15/00 ,  F16F15/22 ,  F16F15/28

CPC classification number: F16F15/007 ,  F16F15/22 ,  F16F15/28 ,  F16F2222/06 ,  F16F2224/0283 ,  F16F2230/18

Abstract: A highly-efficient new-energy vibration controller integrating passive, semi-active and active control, including a multi-cavity beam, a battery assembly, a wound magnetic device, a damping piezoelectric device and an inertia mass assembly. The wound magnetic device includes a connecting rod, an electromagnetic wire wound on a bottom end of the connecting rod and a magnetic box arranged at a bottom of the inertia mass assembly. A top end of the connecting rod is fixedly connected to a bottom of the multi-cavity beam. The bottom end of the connecting rod passes through a center through hole of the inertia mass assembly and arranged in the magnetic box. The magnetic box is provided with a magnetic field. The damping piezoelectric device is sleevedly arranged on an outer wall of the connecting rod. The damping piezoelectric device and the wound magnetic device are both electrically connected to the battery assembly.

公开(公告)号：US20230213395A1

公开(公告)日：2023-07-06

申请号：US17971794

申请日：2022-10-24

Applicant: HARBIN INSTITUTE OF TECHNOLOGY, SHENZHEN

Inventor： JUN WEI ,  JINGJING LUO ,  WEIWEI ZHAO ,  FEIHUA LIU

IPC: G01L1/18

CPC classification number: G01L1/18

Abstract: The present application relates to the technical field of sensors, and in particular, to a flexible piezoresistive sensor and a preparation method thereof. The preparation method includes the following steps: cutting natural wood to obtain wood blocks; removing lignin and hemicellulose from the wood blocks to obtain an initial product; and connecting the initial product to an electrode, and conducting packaging to obtain the flexible piezoresistive sensor. The preparation method has the advantages of a wide range of raw materials, degradability, low cost, simple process, and industrial scale production, and the obtained product features excellent environmental friendliness, biocompatibility, designability, and flexibility, thereby providing a good application potential for a wearable device.