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.

Date of Patent:
Aug. 10, 2021

Filed:

Mar. 21, 2019
Applicant:

Isvision America, Bloomfield Hills, MI (US);

Inventor:

Lei Zhou, Bloomfield Hills, MI (US);

Assignee:

ISVision America, Bloomfield Hills, MI (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06T 7/73 (2017.01); G01C 21/34 (2006.01); G05D 1/02 (2020.01); G06K 9/00 (2006.01);
U.S. Cl.
CPC ...
G06T 7/74 (2017.01); G01C 21/3415 (2013.01); G05D 1/0268 (2013.01); G06K 9/00208 (2013.01); G06T 2207/30252 (2013.01);
Abstract

A method for accurately determining a positioning of an automated guided vehicle relative to a substrate includes scanning a substrate surface of the substrate to produce two or more two-dimensional images, with each respective one of the produced two-dimensional images is associated with a known portion of the substrate surface. The method further includes storing each one of the produced images. The method further includes positioning the automated guided vehicle relative to the substrate surface, and scanning the substrate surface corresponding to the positioned automated guide vehicle to produce a supplemental two-dimensional image. The supplemental image is compared to each of the stored two or more images to accurately determine the position of the vehicle relative to the substrate surface at the position. This information can also be used to drive the automated guided vehicle from the determined position to another known position relative to the substrate surface.


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