Patents by Inventor Jianxu Zhang

Jianxu Zhang 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: 11866064
    Abstract: The present application discloses a method and an apparatus for processing map data, which relate to autonomous driving technologies in the field of data processing. The specific implementation is that: a controlling unit inputs initial positioning data collected by a data collecting unit to a data fusing unit to obtain fused positioning data, where the initial positioning data and the fused positioning data are data in a first coordinate system; the controlling unit obtains target positioning data according to the fused positioning data, where the target positioning data is data in a second coordinate system, and the second coordinate system is a coordinate system obtained by offsetting the first coordinate system; and the controlling unit performs a positioning operation on the target positioning data through at least one positioning unit, to determine a position of a vehicle corresponding to an autonomous driving system.
    Type: Grant
    Filed: October 11, 2021
    Date of Patent: January 9, 2024
    Assignee: Beijing Baidu Netcom Science Technology Co., Ltd.
    Inventors: Yang Yang, Jianxu Zhang, Wenlong Chen, Pengbin Yang, Fengze Han
  • Patent number: 11733398
    Abstract: The present disclosure provides a vehicle positioning method implemented by an electronic device, including: obtaining sensor data about N frames of a vehicle through a sliding window, N being a positive integer; creating a target function for a factor graph model in accordance with the sensor data about the N frames, and performing optimization solution on the target function; and determining a pose and a position of the vehicle in accordance with a target value obtained through the optimization solution on the target function.
    Type: Grant
    Filed: September 13, 2022
    Date of Patent: August 22, 2023
    Assignee: Apollo Intelligent Driving Technology (Beijing) Co., Ltd.
    Inventors: Songpeng Zhang, Pengbin Yang, Jianxu Zhang, Xiaohui Zhu, Xuguang Lv
  • Publication number: 20230043236
    Abstract: The present disclosure provides a vehicle positioning method implemented by an electronic device, including: obtaining sensor data about N frames of a vehicle through a sliding window, N being a positive integer; creating a target function for a factor graph model in accordance with the sensor data about the N frames, and performing optimization solution on the target function; and determining a pose and a position of the vehicle in accordance with a target value obtained through the optimization solution on the target function.
    Type: Application
    Filed: September 13, 2022
    Publication date: February 9, 2023
    Applicant: Apollo Intelligent Driving Technology (Beijing) Co., Ltd.
    Inventors: Songpeng ZHANG, Pengbin YANG, Jianxu ZHANG, Xiaohui ZHU, Xuguang LV
  • Patent number: 11435186
    Abstract: The present application discloses a dead reckoning method for a vehicle, an apparatus, an apparatus and a storage medium, and relates to the fields of vehicle control, intelligent driving and automatic driving. The specific implementation solution is as follows: obtaining a position and attitude increment of the vehicle on the basis of wheel speed information of the vehicle; and carrying out dead reckoning on the position and attitude of the vehicle at a current moment, on the basis of the position and attitude increment of the vehicle and the position and attitude at a previous moment.
    Type: Grant
    Filed: June 17, 2021
    Date of Patent: September 6, 2022
    Assignee: Beijing Baidu Netcom Science and Technology Co., LTD
    Inventors: Wenlong Chen, Yang Yang, Pengbin Yang, Jianxu Zhang
  • Publication number: 20220024482
    Abstract: The present application discloses a method and an apparatus for processing map data, which relate to autonomous driving technologies in the field of data processing. The specific implementation is that: a controlling unit inputs initial positioning data collected by a data collecting unit to a data fusing unit to obtain fused positioning data, where the initial positioning data and the fused positioning data are data in a first coordinate system; the controlling unit obtains target positioning data according to the fused positioning data, where the target positioning data is data in a second coordinate system, and the second coordinate system is a coordinate system obtained by offsetting the first coordinate system; and the controlling unit performs a positioning operation on the target positioning data through at least one positioning unit, to determine a position of a vehicle corresponding to an autonomous driving system.
    Type: Application
    Filed: October 11, 2021
    Publication date: January 27, 2022
    Inventors: Yang Yang, Jianxu Zhang, Wenlong Chen, Pengbin Yang, Fengze Han
  • Publication number: 20220026213
    Abstract: The present disclosure provides a method and an apparatus for determining positioning information of a vehicle, an electronic device, a storage medium and a computer program product, relating to the field of artificial intelligence, in particular to the field of intelligent driving. The method includes: receiving positioning results and error ranges of the positioning results from at least two positioning subsystems in a vehicle; determining reliability detection results of the positioning results of the positioning subsystems according to the error ranges of the positioning results; and determining positioning information of the vehicle according to a first positioning result of a positioning subsystem whose reliability detection result is “reliable”, and determining an error range of the positioning information, where the error range of the positioning information represents a confidence level of the positioning information.
    Type: Application
    Filed: October 11, 2021
    Publication date: January 27, 2022
    Inventors: Mingliang Song, Xuguang Lv, Jiantao Wu, Jianxu Zhang
  • Publication number: 20210310809
    Abstract: The present application discloses a dead reckoning method for a vehicle, an apparatus, an apparatus and a storage medium, and relates to the fields of vehicle control, intelligent driving and automatic driving. The specific implementation solution is as follows: obtaining a position and attitude increment of the vehicle on the basis of wheel speed information of the vehicle; and carrying out dead reckoning on the position and attitude of the vehicle at a current moment, on the basis of the position and attitude increment of the vehicle and the position and attitude at a previous moment.
    Type: Application
    Filed: June 17, 2021
    Publication date: October 7, 2021
    Applicant: Beijing Baidu Netcom Science and Technology Co., LTD
    Inventors: Wenlong Chen, Yang Yang, Pengbin Yang, Jianxu Zhang
  • Publication number: 20210312194
    Abstract: The present disclosure provides a method of matching lane line data, which relates to a field of automatic driving, and in particular to a field of locating an autonomous vehicle. The method of matching lane line data includes: obtaining a first data indicating sensed lane lines and a second data indicating map lane lines respectively; constructing a correlation weight matrix for the first data and the second data, based on differences between the sensed lane lines and the map lane lines; and matching the first data with the second data according to the correlation weight matrix, so as to obtain a third data having an optimal match with the first data from the second data. The present disclosure further discloses an apparatus of matching lane line data, a device, a storage medium and a computer program product.
    Type: Application
    Filed: June 18, 2021
    Publication date: October 7, 2021
    Applicant: BEIJING BAIDU NETCOM SCIENCE TECHNOLOGY CO., LTD.
    Inventors: Pengbin YANG, Yang YANG, Jianxu ZHANG, Wenlong CHEN