Nippon Telegraph and Telephone Corporation

Ntt Corporation

Yujin Hamano

Atsushi Aratake

Daisuke Uchibori

Kazuaki Watanabe

Masafumi Nakagawa

Yosuke Sakurada

Provided is a crewless aircraft capable of accurately estimating its own position even inside a manhole, as well as a crewless aircraft control method. A crewless aircraft according to the present invention is a crewless aircraft used to inspect an interior of a manhole, and includes: a camera sensor that captures an image of a manhole opening; a plurality of rangefinders that measure a distance to a ground surface or a predetermined surface in the interior; and a control unit that estimates an own position on the basis of recognition information of the manhole opening obtained by performing recognition on image information obtained from the camera sensor, and distance information of the distance to the ground surface or the predetermined surface obtained from the rangefinders.

Unmanned aerial vehicle and control method therefor

A storage device () according to the present disclosure is a storage device that stores an unmanned aerial vehicle (), and includes a main body portion () having a curved surface on which the unmanned aerial vehicle () is movable by bringing its wheels () into contact therewith, and a gripping portion () for gripping the unmanned aerial vehicle ().

Storage device, unmanned aerial vehicle, and system

A storage device () that stores an unmanned aerial vehicle () includes a gripping portion () for gripping the unmanned aerial vehicle (), and a main body portion () having a suction surface () to which an upper surface () of the unmanned aerial vehicle () is suctioned.

A propeller guardincludes an upper frameprovided on the uppermost surface of the propeller guard, a base frameprovided on the lowermost surface of the propeller guard, and a curved framethat couples the upper frameand the base frametogether and is curved outward.

Propeller guard

A storage device () that stores an unmanned aerial vehicle () includes a main body portion () having a magnet or a magnetic body () for applying a magnetic force to the unmanned aerial vehicle () provided with a magnet () on an upper surface.

A propeller guard () according to the present disclosure is a propeller guard () for an unmanned aerial vehicle including a main body part () and a propeller part () and includes: an encircling part () that extends around the propeller part () and protects the propeller part (); and a connection part () that connects the main body part () and the encircling part (), wherein the encircling part () has a buoyant force for maintaining at least a part of the main body part () and the propeller part () above water.

Propeller guard and unmanned aerial vehicle

An inspection apparatus () according to an aspect of the present invention includes a first determination unit () that determines an operation of an unmanned aerial vehicle () based on a first threshold for determining whether the unmanned aerial vehicle () can enter the inside, a second threshold, which is greater than the first threshold, for determining whether the unmanned aerial vehicle () can land on a water surface of pooled water in the inside, and space information indicating a space of the inside, and a second determination unit () that determines a flight altitude of the unmanned aerial vehicle () with respect to the water surface or a floor surface of the manhole after the unmanned aerial vehicle () enters the inside based on the first and second thresholds, and the space information in a case where it has been determined that the unmanned aerial vehicle () can enter the inside and cannot land on the water surface.

Growing community of inventors

Tokyo, Japan

Yujin Hamano