Patents by Inventor Xiaohua FENG

Xiaohua FENG has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11967823
    Abstract: The disclosure provides a method for monitoring a short-term voltage stability of a power system. The method includes: obtaining a topology and time series of a current power system; inputting the topology and the time series of the current power system into a trained spatial-temporal graph network model, the trained spatial-temporal graph network model being obtained by classification learning on a spatial-temporal graph network model based on a simulation sample dataset; outputting a status of the short-term voltage stability of the power system; and sending an alarm signal in response to outputting an unstable status of the short-term voltage stability of the power system.
    Type: Grant
    Filed: June 11, 2021
    Date of Patent: April 23, 2024
    Assignees: TSINGHUA UNIVERSITY, ELECTRIC POWER RESEARCH INSTITUTE OF STATE GRID LIAONING POWER CO., LTD., STATE GRID CORPORATION OF CHINA
    Inventors: Chao Lu, Yonghong Luo, Xiaohua Zhang, Changyou Feng, Fangwei Duan, Yingxuan Yang, Ruitong Liu, Yue Han
  • Publication number: 20230326198
    Abstract: The invention discloses an intelligent mobile patrol method, which comprises the following steps: an intelligent mobile device bound with NFC is used to identify the patrol task process; a patrol display point calls and displays the progress of the patrol task and the items inspected; according to the patrol items of the patrol display point, a mobile terminal is used to collect on-site photos, recordings, videos and other information to accumulate on-site visual data; the visual data obtained are uploaded for intelligent processing and analysis, and the historical patrol records are queried in real time to analyze the maintenance rate, missing inspection rate and equipment availability rate; and the patrol records of WIFI or network real-time record points are used to automatically import equipment exceptions into the missing library.
    Type: Application
    Filed: November 4, 2022
    Publication date: October 12, 2023
    Inventors: Qun Yang, Hao Sha, Jixiong Bao, Jiandong Zhang, Huimin Guo, Yongfeng Zheng, Xiaohua Feng, Hui Xu, Zhihua Li, Guoxing Liu, Hao Xu, Yue Pan, Juelin Zhao, Yan Chen, Guquan Zhu
  • Publication number: 20230125131
    Abstract: Systems and methods are provided for ultrafast light field tomography (LIFT), a transient imaging strategy that offers a temporal sequence of over 1000 and enables highly efficient light field acquisition, allowing snapshot acquisition of the complete two, three or four-dimensional space and time. The apparatus transforms targets in object space into parallel lines in the image plane with a cylindrical lens. Beam projections are optionally directed through a Dove prism and an array of cylindrical lenslets to an imaging device such as a SPAD camera, streak camera and CCD camera. By using an array of cylindrical lenslets oriented at distinct angles, enough projections are obtained simultaneously to recover the image with a single snapshot. The time-resolved system and methods were adapted to LIDAR, hyperspectral, non-line-of-sight, and three-dimensional transient imaging.
    Type: Application
    Filed: October 12, 2022
    Publication date: April 27, 2023
    Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: Liang Gao, Xiaohua Feng
  • Patent number: 10624543
    Abstract: A photo-acoustic sensing apparatus (100) for non-invasive measurement of blood parameters of a subject (102) comprises a photo-acoustic sensor (104) for sensing photo-acoustic signals (106) induced when a region of the subject is illuminated by a light source (108). A first sensor processing module (112) may derive blood oxygen saturation using sensed photo-acoustic signals (114). A second sensor processing module (116) may derive blood core temperature using sensed photo-acoustic signals. A third sensor processing module (118) may derive blood glucose using sensed photo-acoustic signals. The sensing apparatus is configured to derive at least one of: a de-correlated value (120) of blood oxygen saturation of the subject; a de-correlated value (122) of blood core temperature of the subject; and a de-correlated value (124) of blood glucose of the subject.
    Type: Grant
    Filed: March 4, 2016
    Date of Patent: April 21, 2020
    Assignee: Nanyang Technological University
    Inventors: Yuanjin Zheng, Xiaohua Feng, Fei Gao
  • Patent number: 10123489
    Abstract: The present disclosure provides a plant growth system and a method for controlling plant growth. The plant growth system includes a cabinet within which partitions are provided so as to divide an interior of the cabinet into a plurality of plant growth compartments, wherein at least one side wall of the cabinet is provided with a touchable; transparent display panel capable of being switched to black screen display.
    Type: Grant
    Filed: May 21, 2014
    Date of Patent: November 13, 2018
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Lin He, Fei Liu, Xiaohua Feng
  • Publication number: 20180064346
    Abstract: A photo-acoustic sensing apparatus (100) for non-invasive measurement of blood parameters of a subject (102) comprises a photo-acoustic sensor (104) for sensing photo-acoustic signals (106) induced when a region of the subject is illuminated by a light source (108). A first sensor processing module (112) may derive blood oxygen saturation using sensed photo-acoustic signals (114). A second sensor processing module (116) may derive blood core temperature using sensed photo-acoustic signals. A third sensor processing module (118) may derive blood glucose using sensed photo-acoustic signals. The sensing apparatus is configured to derive at least one of: a de-correlated value (120) of blood oxygen saturation of the subject; a de-correlated value (122) of blood core temperature of the subject; and a de-correlated value (124) of blood glucose of the subject.
    Type: Application
    Filed: March 4, 2016
    Publication date: March 8, 2018
    Inventors: Yuanjin Zheng, Xiaohua Feng, Fei Gao
  • Patent number: 9753643
    Abstract: The projection screen includes signal lines, photosensitive sensors and a signal processor. The photosensitive sensor is configured to sense a light beam for determining a remote control region from a remote control terminal. The signal line is configured to transmit to the signal processor the sensing signal generated by the photosensitive sensor after sensing the light beam. The signal processor is configured to determine position information about a position irradiated by the light beam. The display device can determine the remote control region in accordance with the position information determined by the signal processor about the position irradiated by the light beam, and receive an operation command from a command key of the remote control terminal so as to perform a remote control operation.
    Type: Grant
    Filed: April 22, 2014
    Date of Patent: September 5, 2017
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Yaohui Li, Xiaohua Feng
  • Patent number: 9478092
    Abstract: The present invention discloses a plant selling device and a control method thereof, by which a ripe plant to be sold can be moved from a plant growth room to a sales room according to the information in a purchase order after the purchase order is generated. According to the technical solution of the present invention, plant factory technology can be combined effectively with automatic plant selling so that plants are sold automatically after ripening, thus providing a more convenient mode of production and sale.
    Type: Grant
    Filed: May 27, 2014
    Date of Patent: October 25, 2016
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Lin He, Fei Liu, Xiaohua Feng
  • Publication number: 20160029574
    Abstract: The present disclosure provides a plant growth system and a method for controlling plant growth. The plant growth system includes a cabinet within which partitions are provided so as to divide an interior of the cabinet into a plurality of plant growth compartments, wherein at least one side wall of the cabinet is provided with a touchable; transparent display panel capable of being switched to black screen display.
    Type: Application
    Filed: May 21, 2014
    Publication date: February 4, 2016
    Applicant: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Lin HE, Fei LIU, Xiaohua FENG
  • Publication number: 20160034183
    Abstract: The projection screen includes signal lines, photosensitive sensors and a signal processor. The photosensitive sensor is configured to sense a light beam for determining a remote control region from a remote control terminal. The signal line is configured to transmit to the signal processor the sensing signal generated by the photosensitive sensor after sensing the light beam. The signal processor is configured to determine position information about a position irradiated by the light beam. The display device can determine the remote control region in accordance with the position information determined by the signal processor about the position irradiated by the light beam, and receive an operation command from a command key of the remote control terminal so as to perform a remote control operation.
    Type: Application
    Filed: April 22, 2014
    Publication date: February 4, 2016
    Applicant: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Yaohui LI, Xiaohua FENG
  • Publication number: 20160026164
    Abstract: The present invention discloses a plant selling device and a control method thereof, by which a ripe plant to be sold can be moved from a plant growth room to a sales room according to the information in a purchase order after the purchase order is generated. According to the technical solution of the present invention, plant factory technology can be combined effectively with automatic plant selling so that plants are sold automatically after ripening, thus providing a more convenient mode of production and sale.
    Type: Application
    Filed: May 27, 2014
    Publication date: January 28, 2016
    Inventors: Lin HE, Fei LIU, Xiaohua FENG