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:
Feb. 16, 2016

Filed:

Jul. 24, 2014
Applicant:

Google Inc., Mountain View, CA (US);

Inventors:

Kevin Blankespoor, Mountain View, CA (US);

Gabriel Nelson, Mountain View, CA (US);

Neil Neville, Mountain View, CA (US);

Assignee:

Google Inc., Mountain View, CA (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01C 22/00 (2006.01); G05D 1/00 (2006.01); B25J 9/00 (2006.01); B25J 9/16 (2006.01);
U.S. Cl.
CPC ...
B25J 9/0006 (2013.01); B25J 9/1697 (2013.01);
Abstract

Example systems and methods for estimating a ground plane are provided. An example method may include determining an orientation of a body of a robotic device with respect to a gravity aligned reference frame. The method may also include determining the location of one or more contact points between the robotic device and a ground surface. The method may also include determining a ground plane estimation of the ground surface based on the determined orientation of the robotic device with respect to the gravity aligned reference frame and the determined locations of the one or more contact points. The method may also include determining a distance between the body of the robotic device and the determined ground plane estimation. The method may also include providing instructions to adjust a position and/or orientation of the robotic device based on the determined distance and the determined ground plane estimation.


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