EJECTABLE FLIGHT DATA RECORDER UNIT

• US 20180232970A1
• Filed: 02/15/2018
• Published: 08/16/2018
• Est. Priority Date: 02/16/2017
• Status: Active Grant

• Current Assignee: Airbus Operations Limited (Airbus SE)
• Original Assignee: Airbus Operations Limited (Airbus SE)
• Inventors: SATYANARAYANA, Kartik
• Granted Patent: US 10,796,509 B2
• Time in Patent Office: Days
• CPC Class Codes: B64C 39/024 of the remote controlled vehicle type, i.e. RPV
• CPC Class Codes: B64D 2045/0065 Black boxes, devices automatically broadcasting distress signals
• CPC Class Codes: B64D 25/20 Releasing of crash position indicators
• CPC Class Codes: B64D 45/00 Aircraft indicators or protectors not otherwise provided for camouflage F41H3/00
• CPC Class Codes: B64U 2101/20 for use as communications relays, e.g. high-altitude platforms
• CPC Class Codes: B64U 30/12 Variable or detachable wings, e.g. wings with adjustable sweep
• CPC Class Codes: B64U 70/00 Launching, take-off or landing arrangements
• CPC Class Codes: B64U 70/20 for releasing or capturing UAVs in flight by another aircraft
• CPC Class Codes: B64U 80/70 in containers B64U80/60 takes precedence
• CPC Class Codes: B64U 80/82 Airborne vehicles
• CPC Class Codes: G07C 5/0858 wherein the data carrier is removable

Abstract

An apparatus for recording aircraft flight data including a primary flight data recorder unit for recording data generated by aircraft systems during operation of an aircraft and a secondary flight data recorder unit in communication with the primary flight data recorder unit. The secondary flight data recorder unit is configured to receive and store data from the primary flight data recorder. The secondary flight data recorder unit is ejectable from the aircraft, and comprises a propulsion system to enable powered flight of the secondary flight data recorder unit.

Claims

1. An apparatus for recording aircraft flight data, the apparatus comprising:

a primary flight data recorder unit configured to record data generated by aircraft systems during operation of an aircraft; and

a secondary flight data recorder unit in communication with the primary flight data recorder and configured to receive and store data from the primary flight data recorder;

wherein the secondary flight data recorder unit is ejectable from the aircraft, and comprises a propulsion system to enable powered flight of the secondary flight data recorder unit.

2. The apparatus according to claim 1, wherein the secondary flight data recorder unit further comprises a guidance system configured to guide the secondary flight data recorder unit to a selected destination.

3. The apparatus according to claim 2, wherein the guidance system comprises one or more of:

a gyroscope and;

a GPS system.

4. The apparatus according to claim 2, wherein the selected destination comprises a land-based location nearest to a last recorded location of the aircraft, and wherein the land-based location to the last recorded location of the aircraft is determined based on aircraft flight data most recently received, prior to ejection, by the secondary flight data recorder unit from the primary flight data recorder unit.

5. The apparatus according to claim 1, wherein the secondary flight data recorder unit comprises one or more of:

a power source;

a wireless communications interface for wirelessly receiving data from the primary flight data recorder unit;

a wired communications interface connectable to the primary flight data recorder unit by a data cable;

a locating system to transmit a localization signal for facilitating locating of the secondary flight data recorder unit;

a memory for storing received data; and

a camera for acquiring image and/or video data after ejection of the secondary flight data recorder unit from the aircraft.

6. The apparatus according to claim 1, wherein the propulsion system comprises one or more of:

an electric motor;

one or more rotors; and

one or more propellers.

7. The apparatus according to claim 1, wherein the secondary flight data recorder unit comprises a housing, having an outer surface which forms an aerofoil profile.

8. The apparatus according to claim 1, wherein the secondary flight data recorder unit comprises an unmanned aerial vehicle (UAV).

9. The apparatus according to claim 1, wherein the primary flight data recorder unit is configured to continuously transmit current flight data to the secondary flight data recorder unit.

10. The apparatus according to claim 1, wherein the secondary flight data recorder unit is configured to store flight data relating to a time period ending at the acquisition time of a most recently received flight data, and is configured to update the stored flight data when new flight data is received from the primary flight data recorder unit.

11. The apparatus according to claim 1, wherein the weight of the secondary flight data recorder unit is less than half the weight of the primary flight data recorder unit, and/or the largest dimension of the secondary flight data recorder unit is less than half the largest dimension of the primary flight data recorder unit.

12. An aircraft comprising:

an apparatus according to claim 1;

a conduit connecting a location of the secondary flight data recorder unit to the outside of the aircraft, for enabling ejection of the secondary flight data recorder unit from the aircraft; and

an ejection mechanism for ejecting the secondary flight data recorder unit from the aircraft via the conduit, wherein the ejection mechanism is configured to activate in response to a predetermined criterion being met.

13. The aircraft according to claim 12, wherein the ejection mechanism comprises a compressed air source configured for selectably delivering compressed air into the conduit to create a suction force at the location of the secondary flight data recorder, wherein the compressed air source is configured to deliver compressed air into the conduit in response to a predetermined criterion being met.

14. The aircraft according to claim 12, wherein the conduit comprises a first selectably openable door between the interior of the conduit and the outside of the aircraft and a second selectably openable door between the location of the secondary flight data recorder unit and the interior of the conduit, wherein each of the first and second selectably openable doors is configured to open in response to the predetermined criterion being met.

15. The aircraft according to claim 12, wherein the ejection mechanism comprises at least one g-force sensor to measure current g-force on the aircraft, and wherein the predetermined criterion comprises a minimum g-force threshold and is defined such that a current g-force less than the threshold does not meet the predetermined criterion and a current g-force greater than the threshold meets the predetermined criterion.

16. The aircraft according to claim 12, wherein the secondary flight data recorder unit comprises a rechargeable battery and the aircraft comprises a charging system configured to maintain the rechargeable battery in a substantially fully charged state.

17. A method of storing aircraft flight data relating to the operation of an aircraft, the method comprising:

receiving aircraft flight data at a primary flight data recorder unit; and

sending, by the primary flight data recorder unit, at least some of the received aircraft flight data to a secondary flight data recorder unit, wherein the secondary flight recorder unit is ejectable from the aircraft and comprises a propulsion system to enable powered flight of the secondary flight data recorder unit.

18. An assembly configured to be mounted in an aircraft and comprising:

a primary flight data recorder unit configured to record data generated by aircraft systems during operation of the aircraft, wherein the primary flight data recorder unit is fixed to the aircraft and lacks a propulsion device; and

a secondary flight data recorder unit releasably mounted to the aircraft, and configured for data communication with the primary flight data recorder and configured to receive and store data from the primary flight data recorder; and

a propulsion system included with the secondary flight data recorder unit, wherein the secondary flight data recorder unit is ejectable from the aircraft by being propelled from the aircraft by the propulsion system.

19. The assembly of claim 18 further comprising an unmanned aerial vehicle (UAV) which includes the secondary flight data recorder and the propulsion system.

20. The assembly of claim 18 wherein the secondary flight data recorder further comprises deployable wings.