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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.:

US 9506956 B1

PDFFull Text
Date of Patent:
Nov. 29, 2016

Filed:

Oct. 23, 2012

Flow direction detection device, flow direction detection method, and flow direction detection program

Applicant:

Omron Corporation, Kyoto-Shi, Kyoto, JP;

Inventors:

Hiroshi Imai, Nara, JP;

Ryota Akai, Kyoto, JP;

Chen Chen, Kyoto, JP;

Yasukazu Ohno, Nara, JP;

Assignee:

OMRON Corporation, Kyoto, JP;

Attorney:

Osha Liang LLP

Primary Examiner:

Jermele M Hollington

Assistant Examiner:

Raul Rios Russo

Int. Cl.
CPC ...
G01R 19/14 (2006.01); G01R 11/00 (2006.01); G01R 11/32 (2006.01); G01R 21/133 (2006.01); G01R 19/00 (2006.01); H02J 13/00 (2006.01); G01R 31/40 (2014.01); G01R 11/34 (2006.01); G01R 11/48 (2006.01); G01R 19/25 (2006.01); H02J 3/38 (2006.01);
U.S. Cl.
CPC ...
G01R 19/14 (2013.01); G01R 11/00 (2013.01); G01R 11/32 (2013.01); G01R 19/0092 (2013.01); G01R 19/25 (2013.01); G01R 21/133 (2013.01); H02J 13/00 (2013.01); H02S 50/00 (2013.01); G01R 11/34 (2013.01); G01R 11/48 (2013.01); G01R 19/2513 (2013.01); H02J 3/383 (2013.01); Y02B 10/14 (2013.01); Y02E 10/563 (2013.01);
Abstract

A detection apparatus that detects a state of power has a first current transformer that measures a first current on a side of a first power line with respect to a connecting point between the first power line extending from a commercial power supply and a second power line extending from a power generation means that supplies power having the same frequency as the commercial power supply, a second current transformer that measures a second current on a side of the second power line with respect to the connecting point, a first current direction detector that detects a direction of the first current, a second current direction detector that detects a direction of the second current, and an exclusive OR calculator that calculates an exclusive OR between a detected value of the direction of the first current and a detected value of the direction of the second current.

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