Patents by Inventor Chenglei Lv

Chenglei Lv 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).

  • Method for positioning underwater glider based on virtual time difference of arrival of single beacon
    Patent number: 11719784
    Abstract: A method for positioning an underwater glider based on a virtual TDOA of a single beacon is provided. In the method, a positioning beacon periodically sends positioning messages, where the positioning message includes longitude, latitude and depth information of the positioning beacon; the underwater glider receives the positioning messages and records TOAs at which the positioning messages arrive at an acoustic positioning signal receiving module; and the underwater glider parses the positioning messages and stores positioning message data, creates virtual beacons based on beacon information and attitude information of the underwater glider, corrects the TOAs, and calculates a position of the underwater glider according to a TDOA algorithm. According to the method, the underwater glider passively listens to and receives the positioning messages without sending a positioning request to the positioning beacon, making the entire positioning process energy-saving with a certain degree of concealment.
    Type: Grant
    Filed: September 22, 2021
    Date of Patent: August 8, 2023
    Assignee: Zhejiang University
    Inventors: Huifang Chen, Lei Xie, Feng Liu, Chenglei Lv, Wen Xu
  • METHOD FOR POSITIONING UNDERWATER GLIDER BASED ON VIRTUAL TIME DIFFERENCE OF ARRIVAL OF SINGLE BEACON
    Publication number: 20220128647
    Abstract: A method for positioning an underwater glider based on a virtual TDOA of a single beacon is provided. In the method, a positioning beacon periodically sends positioning messages, where the positioning message includes longitude, latitude and depth information of the positioning beacon; the underwater glider receives the positioning messages and records TOAs at which the positioning messages arrive at an acoustic positioning signal receiving module; and the underwater glider parses the positioning messages and stores positioning message data, creates virtual beacons based on beacon information and attitude information of the underwater glider, corrects the TOAs, and calculates a position of the underwater glider according to a TDOA algorithm. According to the method, the underwater glider passively listens to and receives the positioning messages without sending a positioning request to the positioning beacon, making the entire positioning process energy-saving with a certain degree of concealment.
    Type: Application
    Filed: September 22, 2021
    Publication date: April 28, 2022
    Applicant: Zhejiang University
    Inventors: Huifang Chen, Lei Xie, Feng Liu, Chenglei Lv, Wen Xu