Patents by Inventor Haifei Sha

Haifei Sha 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).

  • Self-positioning system and self-positioning identification method of deepwater underwater robot of irregular dam surface of reservoir
    Patent number: 10677919
    Abstract: The present invention provides a self-positioning system of a deepwater underwater robot of an irregular dam surface of a reservoir, including cross reflection metal plates arranged on the irregular dam surface, and an underwater robot provided with a control motherboard, a water level indicator and a sonar system, wherein the water level indicator and the sonar system are respectively connected with the control motherboard, and the control motherboard is connected with a computer via a cable. The cross reflection metal plate has known coordinates and has four quadrants. A sonar signal emitted by the sonar system is reflected by the cross reflection metal plate to generate sonar reflection signals of four quadrants, and the sonar signals in the effective quadrants correspond to known coordinate parameters of the cross reflection metal plate so as to obtain the horizontal distance between the underwater robot and the irregular dam surface.
    Type: Grant
    Filed: March 28, 2018
    Date of Patent: June 9, 2020
    Assignee: NANJING HYDRAULIC RESEARCH INSTITUTE
    Inventors: Yan Xiang, Zhuo Li, Jinbao Sheng, Yunqing Tang, Chengdong Liu, Guangya Fan, Haifei Sha, Xiaolei Zhan, Kai Zhang, Guangze Shen
  • SELF-POSITIONING SYSTEM AND SELF-POSITIONING IDENTIFICATION METHOD OF DEEPWATER UNDERWATER ROBOT OF IRREGULAR DAM SURFACE OF RESERVOIR
    Publication number: 20190235074
    Abstract: The present invention provides a self-positioning system of a deepwater underwater robot of an irregular dam surface of a reservoir, including cross reflection metal plates arranged on the irregular dam surface, and an underwater robot provided with a control motherboard, a water level indicator and a sonar system, wherein the water level indicator and the sonar system are respectively connected with the control motherboard, and the control motherboard is connected with a computer via a cable. The cross reflection metal plate has known coordinates and has four quadrants. A sonar signal emitted by the sonar system is reflected by the cross reflection metal plate to generate sonar reflection signals of four quadrants, and the sonar signals in the effective quadrants correspond to known coordinate parameters of the cross reflection metal plate so as to obtain the horizontal distance between the underwater robot and the irregular dam surface.
    Type: Application
    Filed: March 28, 2018
    Publication date: August 1, 2019
    Applicant: NANJING HYDRAULIC RESEARCH INSTITUTE
    Inventors: YAN XIANG, ZHUO LI, JINBAO SHENG, YUNQING TANG, CHENGDONG LIU, GUANGYA FAN, HAIFEI SHA, XIAOLEI ZHAN, KAI ZHANG, GUANGZE SHEN