Patents by Inventor XuLei Guo

XuLei Guo 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: 10059569
    Abstract: A monitoring system and a monitoring method for a passenger conveying device, and the passenger conveying device. The monitoring system comprises an imaging sensor and/or a depth sensing sensor for sensing a monitoring area of the passenger conveying device to acquire data frames; and a processing device for performing data processing on the data frames to monitor whether the monitoring area is abnormal, and configured to comprise: a background acquisition module for acquiring a background model based on data frames sensed when the monitoring area is in a normal state; a foreground detection module for comparing data frames sensed in real time with the background model to obtain a foreground object; a foreground feature extraction module for extracting a corresponding foreground object markup feature from the foreground object; and a state judgment module for judging whether the foreground object belongs to an abnormal population.
    Type: Grant
    Filed: July 26, 2017
    Date of Patent: August 28, 2018
    Assignee: OTIS ELEVATOR COMPANY
    Inventors: Hui Fang, Zhen Jia, Yanzhi Chen, Alan Matthew Finn, Arthur Hsu, Jianwei Zhao, ZhaoXia Hu, Qiang Li, Anna Su, Longwen Wang, XuLei Guo, Alois Senger
  • Patent number: 9884749
    Abstract: A sensor assembly for a passenger conveying device, a safety system and the passenger conveying device, wherein the sensor assembly comprises an optical fiber disposed along a length of a skirt board of the passenger conveying device; a light source disposed at a first end of the optical fiber, light being incident into the optical fiber; and an optical receiver disposed at the first end of the optical fiber, the optical receiver receiving backwards scattered light from the optical fiber and being capable of sensing a signal indication of the backwards scattered light, wherein the optical fiber is associated with a sensing element such that the sensing element causes deformation of the optical fiber when the sensing element is subjected to pressure, and the optical receiver is capable of sensing a change in the signal indication of the backward scattered light caused by the deformation of the optical fiber.
    Type: Grant
    Filed: July 26, 2017
    Date of Patent: February 6, 2018
    Assignee: OTIS ELEVATOR COMPANY
    Inventors: LingHao Tian, Qiang Li, XuLei Guo, Jianwei Zhao, ZhaoXia Hu, Alan Matthew Finn
  • Publication number: 20180029837
    Abstract: A sensor assembly for a passenger conveying device, a safety system and the passenger conveying device, wherein the sensor assembly comprises an optical fiber disposed along a length of a skirt board of the passenger conveying device; a light source disposed at a first end of the optical fiber, light being incident into the optical fiber; and an optical receiver disposed at the first end of the optical fiber, the optical receiver receiving backwards scattered light from the optical fiber and being capable of sensing a signal indication of the backwards scattered light, wherein the optical fiber is associated with a sensing element such that the sensing element causes deformation of the optical fiber when the sensing element is subjected to a-pressure, and the optical receiver is capable of sensing a change in the signal indication of the backward scattered light caused by the deformation of the optical fiber.
    Type: Application
    Filed: July 26, 2017
    Publication date: February 1, 2018
    Inventors: LingHao Tian, Qiang Li, XuLei Guo, Jianwei Zhao, ZhaoXia Hu, Alan Matthew Finn
  • Publication number: 20180029838
    Abstract: A monitoring system and a monitoring method for a passenger conveying device, and the passenger conveying device. The monitoring system comprises an imaging sensor and/or a depth sensing sensor for sensing a monitoring area of the passenger conveying device to acquire data frames; and a processing device for performing data processing on the data frames to monitor whether the monitoring area is abnormal, and configured to comprise: a background acquisition module for acquiring a background model based on data frames sensed when the monitoring area is in a normal state; a foreground detection module for comparing data frames sensed in real time with the background model to obtain a foreground object; a foreground feature extraction module for extracting a corresponding foreground object markup feature from the foreground object; and a state judgment module for judging whether the foreground object belongs to an abnormal population.
    Type: Application
    Filed: July 26, 2017
    Publication date: February 1, 2018
    Inventors: Hui Fang, Zhen Jia, Yanzhi Chen, Alan Matthew Finn, Arthur Hsu, Jianwei Zhao, ZhaoXia Hu, Qiang Li, Anna Su, Longwen Wang, XuLei Guo, Alois Senger