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:
Nov. 19, 2024
Filed:
Mar. 13, 2020
Chiba Institute of Technology, Chiba, JP;
Masahiro Tomono, Chiba, JP;
CHIBA INSTITUTE OF TECHNOLOGY, Chiba, JP;
Abstract
A self-localization device that can reduce the processing time even when estimating the self-location in an environment where the number of pieces of three-dimensional point group data is large wherein the self-localization device includes an estimation unit that includes: a map generation unit that generates a map of surroundings of the mobile robot based on three-dimensional point group data detected by a detection unit; a geometric feature extraction unit that extracts geometric features from a current map and extracts geometric features from a past map; a self-location calculation unit that selects the geometric features extracted by the geometric feature extraction unit as sets of geometric features and calculates self-locations in the past map; and a self-location evaluation unit that evaluates a degree of coincidence between the current map and the past map for each set of geometric features.