CROSS-REFERENCE TO RELATED APPLICATION

The present application is a national phase entry under 35 U.S.C. § 371 of International Application No. PCT/JP2017/045418 filed Dec. 19, 2017, which is incorporated herein by reference.

TECHNICAL FIELD

The present invention relates to a device configured to collect aircraft operation history information.

BACKGROUND ART

A local government, such as of a prefecture, the Ministry of Defense, an airport administration organization, or the like monitors aircraft (for example, airplanes, helicopters, and Cessna planes) passing through a specific flight route, and collects operation history information on the aircraft passing through the flight route in some cases. To collect the aircraft operation history information by the local government, the Ministry of Defense, the airport administration organization, or the like (hereinafter, referred to as “aircraft monitoring organization”), dedicated staff having knowledge to identify various aircraft models (for example, A380, B747, F-35, and V-22), requires a lot of labor. Accordingly, collection of aircraft operation history information is a burden on the aircraft monitoring organization.

To reduce such a burden, various technologies to efficiently identify the model of the aircraft (hereinafter, referred to as “aircraft identification technology”) have been proposed. As one example of the aircraft identification technologies which have been proposed, there is a technology that intercepts an identification radio wave such as a transponder response signal radio wave transmitted from the aircraft, and identifies the model of the aircraft based on the intercepted identification radio wave (for example, see Patent Literatures 1 and 2).

As another example of the aircraft identification technologies which have been proposed, there is a technology that acquires an image of a flying object such as an aircraft by a laser radar in a case in which a sound wave generated from the flying object is detected, and identifies the flying object based on the acquired image of the flying object (for example, see Patent Literature 3). Furthermore, as yet another example of the aircraft identification technologies which have been proposed, there is a technology that captures an image of a moving object by an imaging device such as a monitoring camera, generates moving object information based on a contour line of the moving object in the captured image, and estimates presence/absence, a type, and a posture of a detection target such as an aircraft and a bird based on the moving object information (for example, see Patent Literature 4).

CITATION LIST

Patent Literature

[Patent Literature 1] JP S63-308523 A

[Patent Literature 2] WO 02/052526 A1

[Patent Literature 3] JP 2017-72557 A

[Patent Literature 4] WO 2015/170776 A1

SUMMARY OF INVENTION

Technical Problem

A helicopter, a Cessna plane, and the like among commercial aircraft, do not transmit an identification radio wave in most cases, and military aircraft also do not transmit identification radio wave in most cases. A device transmitting the identification radio wave in the aircraft may be out of order. In such a case, even when the above-described one example of the aircraft identification technologies is used, the identification radio wave cannot be received, which makes it difficult to identify the model of the aircraft. Accordingly, it is desirable to identify the models of every aircraft including aircraft that do not transmit the identification radio wave.

Even when the above-described another example or the above-described still another example of the aircraft identification technologies is used, it is only possible to acquire the image of the passing aircraft and to identify the aircraft in the acquired image. Therefore, the aircraft operation history information cannot be efficiently collected. Accordingly, in the aircraft monitoring organization, dedicated staff must collect the aircraft operation history information and this requires a lot of labor. In particular, to collect the operation history information on aircraft flying at night, it is desirable to continuously monitor passage states of the aircraft for 24 hours; however, deployment of dedicated staff at night is a burden on the aircraft monitoring organization. Thus, to reduce such a burden, it is desirable to efficiently collect the aircraft operation history information.

In views of the above-described circumstances, it is desirable to provide a device for collecting the aircraft operation history information that can collect the operation history information on every aircraft and can improve efficiency in collection of the aircraft operation history information.

Solution to Problem

To solve the above-described issues, a device for collecting aircraft operation history information according to an aspect is a device configured to collect aircraft operation history information, and includes: an image acquisition unit configured to acquire an image obtained by imaging a specific route; an image-type model identification unit configured to identify a model of an aircraft in the route based on: appearance data of an aircraft in the image acquired by the image acquisition unit; and aircraft appearance samples previously prescribed for respective models; and an operation history storage unit configured to store image-derived model information identified by the image-type model identification unit.

Advantageous Effects of Invention

The device for collecting the aircraft passage state according to an aspect can collect the operation history information on every aircraft, and can improve efficiency in collection of the aircraft operation history information.

