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:
Oct. 17, 2017

Filed:

Sep. 30, 2015
Applicant:

Komatsu Ltd., Tokyo, JP;

Inventors:

Shun Kawamoto, Hiratsuka, JP;

Taiki Sugawara, Hiratsuka, JP;

Hiroyoshi Yamaguchi, Hiratsuka, JP;

Assignee:

Komatsu Ltd., Tokyo, JP;

Attorney:
Int. Cl.
CPC ...
G01M 17/00 (2006.01); E02F 9/26 (2006.01); E02F 9/22 (2006.01); E02F 3/32 (2006.01);
U.S. Cl.
CPC ...
E02F 9/261 (2013.01); E02F 9/2203 (2013.01); E02F 9/262 (2013.01); E02F 9/265 (2013.01); E02F 3/32 (2013.01);
Abstract

A calibration method includes: detecting a predetermined position of a work machine according to first and second methods in a different posture of the work machine; and obtaining a conversion information item used to convert a position detected by the first method from a coordinate system in the first method into a coordinate system different from that of the first method or obtaining a conversion information item used to convert a position detected by the second method from a coordinate system of the second method into a coordinate system different from that of the second method by using a first position information item as information for the predetermined position detected by the first method and a second position information item as information for the predetermined position detected by the second method in a posture of the work machine when the predetermined position is detected by the first method.


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