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:
May. 02, 2017

Filed:

Sep. 19, 2013
Applicant:

Kabushiki Kaisha Toshiba, Minato-ku, JP;

Inventors:

Yasuo Takagi, Chigasaki, JP;

Kyosuke Katayama, Asaka, JP;

Kazuto Kubota, Kawasaki, JP;

Assignee:

KABUSHIKI KAISHA TOSHIBA, Minato-ku, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01R 19/00 (2006.01); G01R 19/25 (2006.01); H02J 13/00 (2006.01);
U.S. Cl.
CPC ...
G01R 19/0007 (2013.01); G01R 19/2513 (2013.01); H02J 13/0075 (2013.01); Y02B 70/3266 (2013.01); Y02E 60/7853 (2013.01); Y04S 20/242 (2013.01); Y04S 40/126 (2013.01);
Abstract

According to an embodiment, a status estimation apparatus includes detector, calculator, estimator and specifying unit. Detector detects a status change of any of electrical devices based on measurement data of a current flowing in a distribution line supplies power to the devices. Calculator calculates a current waveform change and a power change associated with the status change based on the measurement data. Estimator estimates a candidate originating from the status change based on the current waveform change. Specifying unit specifies a device caused the status change and a type of the status change based on the power change and an estimation result of the candidate.


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