公开(公告)号：US20240371133A1

公开(公告)日：2024-11-07

申请号：US18556730

申请日：2022-11-29

Applicant: SOUTHERN UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： Junguo LIU ,  Jinlin JIA ,  Wenhui CUI

IPC: G06V10/764 ,  G06V10/56 ,  G06V20/10

Abstract: A method, device, system, and medium for classifying green-blue-gray infrastructure. The method includes obtaining a multispectral photo corresponding to a target area, and obtaining an image set of a target and a color orthophoto, based on the multispectral photo; obtaining a sample file based on the color orthophoto, and obtaining a classification result of the green-blue-gray infrastructure corresponding to the target area based on the image set of the target and the sample file. The embodiments can obtain the image set of the target and the color orthophoto based on the multispectral photo corresponding to the target area and combine the sample file obtained from the color orthophoto with the image set of the target to obtain the classification result of the green-blue-gray infrastructure corresponding to the target area, thereby improving the accuracy and efficiency for classifying the green-blue-gray infrastructure.

公开(公告)号：US20210018484A1

公开(公告)日：2021-01-21

申请号：US16937554

申请日：2020-07-23

Applicant: SOUTHERN UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： Junguo LIU ,  Ganquan MAO

IPC: G01N33/24 ,  G06F30/20

Abstract: In the present application, a method for assessing water shortage risk, device, computer device and storage medium are provided, wherein the method for assessing water shortage risk comprises: acquiring a volume of blue water flowing into soil of a to-be-assessed-area within a target time period, and a volume of retention water flowing into and retained in the soil of the to-be-assessed-area within the target time period; and determining a water shortage risk indicator of the to-be-assessed-area indicating a degree of water shortage risk of the to-be-assessed-area, according to a ratio of the volume of blue water to the volume of retention water. A higher ratio of the volume of blue water to the volume of retention water indicates poor ability of the soil's water to meet the demand for use and greater degree of the water shortage risk of the soil.

公开(公告)号：US20240279097A1

公开(公告)日：2024-08-22

申请号：US18435022

申请日：2024-02-07

Applicant: SOUTHERN UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： Junguo LIU ,  Tao HUANG

IPC: C02F3/30 ,  C02F3/34

CPC classification number: C02F3/306 ,  C02F3/341 ,  C02F2209/02 ,  C02F2209/16 ,  C02F2209/22 ,  C02F2209/44

Abstract: A system for treating nitrate nitrogen sewage by autotrophic denitrification subsurface flow constructed wetland and a method thereof. The system includes a wetland pool body, a wetland substrate, a water distribution device, a water outlet device, and plants. The wetland substrate is filled in the wetland pool body. The wetland substrate includes pyrite, volcanic rock, and biochar. The water distribution device is located at the top of the wetland pool body to distribute water into the wetland pool body, and the water outlet device is located at the bottom of the wetland pool body to collect treated sewage. The plant is planted in the wetland substrate. The dissolved oxygen concentration of the system for treating nitrate nitrogen sewage by autotrophic denitrification subsurface flow constructed wetland is maintained at 1.2˜2.8 mg/L.