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:
Sep. 15, 2026

Filed:

Jul. 04, 2022
Applicant:

Ntt, Inc., Tokyo, JP;

Inventors:

Fumiaki Nagase, Musashino, JP;

Yu Ono, Musashino, JP;

Tatsuya Nakatani, Musashino, JP;

Toshifumi Miyagi, Musashino, JP;

Assignee:

NTT, Inc., Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 22/02 (2006.01); F03D 17/00 (2016.01);
U.S. Cl.
CPC ...
G01N 22/02 (2013.01); F03D 17/028 (2023.08); F05B 2260/83 (2013.01);
Abstract

A blade inspection system includes: a transmitter of electromagnetic waves mounted in a first unmanned aerial vehicle (UAV); a receiver of electromagnetic waves mounted in a second UAV; at least one processor communicably coupled to the transmitter and the receiver; and a memory storing instructions executable by the at least one processor. The instructions causes the at least one processor to execute: emitting electromagnetic waves from the transmitter to the rotating surfaces of the blades of a wind power plant in a state where the first UAV and the second UAV face each other with the blades sandwiched therebetween; receiving, by the receiver, at least one of a reflected wave and a diffracted wave generated by the blades due to the emission of the electromagnetic waves from the transmitter; and determining whether there is an abnormality in the blades through analysis of the reflected wave or the diffracted wave.


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