The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 08, 2025
Filed:
Jan. 13, 2023
Chongqing University, Chongqing, CN;
Shanghai University, Shanghai, CN;
Jun Luo, Chongqing, CN;
Lele Ding, Chongqing, CN;
Huayan Pu, Chongqing, CN;
Jie Ma, Chongqing, CN;
Xuyang Zheng, Chongqing, CN;
Hongliang Liu, Chongqing, CN;
Jing Huang, Chongqing, CN;
Yongbing Chen, Chongqing, CN;
Anming Shen, Chongqing, CN;
Chongqing University, Chongqing, CN;
Shanghai University, Shanghai, CN;
Abstract
The present disclosure provides a method and system for path planning of an unmanned vehicle in a three-dimensional terrain and relates to the technical field of path planning. The method includes building a random tree with an initial point of a to-be-planned path as a node; generating a random node based on a goal bias strategy and a multi-sampling strategy; determining a node in the random tree and with a minimum two-dimensional distance from the random node as a nearest node; determining a direction from the nearest node to the random node as an extension direction; determining a point corresponding to a preset step length as a to-be-determined node in the extension direction with the nearest node as a starting point; and updating the random tree or determining a path cut-off random tree through elevation detection and path search cut-off detection, so as to determine the to-be-planned path.