Aircraft provided with a surveillance system

Patent metadata

Field	Value
Publication number	US-2017195634-A1
Application number	US-201715463892-A
Country	US
Kind code	A1
Filing date	Mar 20, 2017
Priority date	Apr 1, 2011
Publication date	Jul 6, 2017
Grant date	—

Abstract

An aircraft ( 11 ) includes an enclosure and a system for surveilling areas of interest inside the enclosure. The enclosure includes a transverse aisle ( 13 ) and a longitudinal aisle ( 15 ) that intersect at an intersection zone ( 19 ), a first access door ( 14 ) being located at one end of the transverse aisle ( 13 ) and a second access door ( 22 ) being located at one end of the longitudinal aisle. In addition, the surveillance system includes a panoramic camera ( 17 ) with a panoramic field of view, the camera being positioned at the intersection zone ( 19 ) such that an area of interest associated with the first access door ( 14 ) and an area of interest associated with the second access door is located within the field of view of the panoramic camera.

First claim

1 . An aircraft comprising:
a main cabin comprising a transverse aisle and a longitudinal aisle that intersect at an intersection zone, a first access door being situated at one end of the transverse aisle and a second access door being situated at one end of the longitudinal aisle, said second access door providing access from the main cabin to a flightdeck of the aircraft; a cockpit door surveillance system (CDSS) arranged to monitor said second access door; wherein the CDSS comprises a panoramic camera comprising a fixed camera associated with a fixed objective lens configured to focus simultaneously a field of view with an angular width in excess of 150° both in azimuth about an axis of the panoramic camera and in elevation in a plane containing said axis of the panoramic camera; wherein said panoramic camera is in a region of the intersection zone and arranged so that a zone of interest associated with the first access door and a zone of interest associated with the second access door are in the field of view of said panoramic camera; wherein said panoramic camera further comprises a lighting element and a housing in which are arranged said lighting element and the fixed objective lens; and wherein the fixed objective lens is arranged in a protruding part of the housing that extends forward beyond the lighting element, such that said lighting element is recessed in the housing relative to the fixed objective lens and is not in the field of view of said fixed objective lens.

2 . The aircraft as claimed in claim 1 , wherein the protruding part is of tubular shape and made of opaque material, and the fixed objective lens is arranged inside said protruding part of the housing.

3 . The aircraft as claimed in claim 2 , wherein the housing comprises a peripheral groove surrounding the protruding part and the lighting element is arranged in said peripheral groove.

4 . The aircraft as claimed in claim 3 , wherein the lighting element comprises plural light emitting elements in the peripheral groove.

5 . The aircraft as claimed in claim 4 , wherein the fixed objective lens is a panomorph objective lens.

6 . The aircraft as claimed in claim 5 , wherein the panomorph objective lens is configured such that a pixel density of the panoramic camera decreases towards the axis of said panoramic camera.

7 . The aircraft as claimed in claim 1 , wherein said CDSS further comprises a non-panoramic camera having a field of view with an angular width less than 150°, said non-panoramic camera being separate from the panoramic camera and said non-panoramic camera being arranged to observe a zone of interest in the field of view of the panoramic camera.

8 . The aircraft as claimed in claim 7 , wherein said non-panoramic camera is arranged to observe a zone of interest at the end of the longitudinal aisle, in front of the second access door.

9 . The aircraft as claimed in claim 8 , wherein said non-panoramic camera is sited in the second access door.

10 . The aircraft as claimed in claim 1 , wherein said panoramic camera has a field of view wide enough to observe also the transverse aisle on the opposite side to the first access door and/or the longitudinal aisle on the opposite side to the second access door.

11 . The aircraft as claimed in claim 1 , further comprising a third access door at another end of the transverse aisle, wherein the field of view of the panoramic camera has an angular width to observe the third access door so that the zones of interest associated with the first and second access doors a zone of interest associated with the third access door are simultaneously captured in an image by said panoramic camera.

12 . The aircraft as claimed in claim 1 , wherein the main cabin further comprises a second longitudinal aisle intersecting the transverse aisle at a second intersection zone, wherein the CDSS further comprises another panoramic camera having a field of view with an angular width in excess of 150° arranged in a region of the second intersection zone so as to observe at least the second longitudinal aisle.

13 . The aircraft as claimed in claim 1 , wherein said panoramic camera is housed in a ceiling of the main cabin.

14 . The aircraft as claimed in claim 1 , wherein the panoramic camera further comprises a light scattering element arranged in front of the lighting element and recessed in the housing relative to the fixed objective lens.

15 . The aircraft as claimed in claim 14 , wherein the light scattering element is surrounded by a peripheral wall which is recessed relative to the protruding part by a height D and wherein light scattering element has a width D′, and wherein a ratio D/D′ is greater than 0.25.

16 . The aircraft as claimed in claim 1 , wherein the fixed objective lens is a panomorph objective lens.

17 . The aircraft as claimed in claim 16 , wherein the panomorph objective lens is configured such that a pixel density of the panoramic camera decreases towards the axis of said panoramic camera.

Assignees

• Latecoere

Inventors

• Boucourt Gerard
• Carrier Xavier
• Groux Laurent

Classifications

• H04N23/698

  for achieving an enlarged field of view, e.g. panoramic image capture · CPC title

• H04N23/57

  Mechanical or electrical details of cameras or camera modules specially adapted for being embedded in other devices · CPC title

• H04N23/56

  provided with illuminating means · CPC title

• H04N23/51

  Housings · CPC title

• G02B13/06

  Panoramic objectives; So-called "sky lenses" {including panoramic objectives having reflecting surfaces} · CPC title