Patents by Inventor Lianfa XU

Lianfa XU 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).

  • In-situ detection device for detecting water and fertilizer content in crop cultivation substrate and detection method thereof
    Patent number: 11874219
    Abstract: An in-situ detection device for detecting water and fertilizer content in a crop cultivation substrate and a detection method thereof are provided. The in-situ detection device includes a water and fertilizer in-situ collector and a spectrum analysis device. The water and fertilizer in-situ collector that is pre-buried in the cultivation substrate is used to collect water and fertilizer in the cultivation substrate in real time to obtain a measurement sample. The spectral analysis device is used to emit a laser with a specific wavelength to detect and analyze content of nitrogen, phosphorus, and potassium in the measurement sample collected by the water and fertilizer in-situ collector; and a continuous sampling system for continuously transporting the measurement sample is provided between the water and fertilizer in-situ collector and the spectrum analysis device.
    Type: Grant
    Filed: October 30, 2021
    Date of Patent: January 16, 2024
    Assignees: Qingdao Agricultural University, Shandong Huijinhai Wisdom Agricultural Research Institute Co., Ltd., Weifang Huijinhai Internet of Things Technology Co., Ltd.
    Inventors: Bin Liang, Baogang Xu, Lianfa Xu
  • IN-SITU DETECTION DEVICE FOR DETECTING WATER AND FERTILIZER CONTENT IN CROP CULTIVATION SUBSTRATE AND DETECTION METHOD THEREOF
    Publication number: 20220136958
    Abstract: An in-situ detection device for detecting water and fertilizer content in a crop cultivation substrate and a detection method thereof are provided. The in-situ detection device includes a water and fertilizer in-situ collector and a spectrum analysis device. The water and fertilizer in-situ collector that is pre-buried in the cultivation substrate is used to collect water and fertilizer in the cultivation substrate in real time to obtain a measurement sample. The spectral analysis device is used to emit a laser with a specific wavelength to detect and analyze content of nitrogen, phosphorus, and potassium in the measurement sample collected by the water and fertilizer in-situ collector; and a continuous sampling system for continuously transporting the measurement sample is provided between the water and fertilizer in-situ collector and the spectrum analysis device.
    Type: Application
    Filed: October 30, 2021
    Publication date: May 5, 2022
    Applicants: Qingdao Agricultural University, Shandong Huijinhai Wisdom Agricultural Research Institute Co., Ltd., Weifang Huijinhai Internet of Things Technology Co., Ltd.
    Inventors: Bin LIANG, Baogang XU, Lianfa XU