Directed fragmentation for unmanned airborne vehicles

Patent metadata

Field	Value
Publication number	US-9828097-B1
Application number	US-201615179773-A
Country	US
Kind code	B1
Filing date	Jun 10, 2016
Priority date	Jun 10, 2016
Publication date	Nov 28, 2017
Grant date	Nov 28, 2017

Abstract

Directed fragmentation of an unmanned aerial vehicle (UAV) is described. In one embodiment, the UAV includes various components, such one or more motors, batteries, sensors, a housing, casing or shell, and a payload for delivery. Additionally, the UAV includes a flight controller and a fragmentation controller. The flight controller determines a flight path and controls a flight operation of the UAV. During the flight operation, the fragmentation controller develops a fragmentation sequence for one or more of the components based on the flight path, the flight conditions, and terrain topology information, among other factors. The fragmentation controller can also detect a disruption in the flight operation of the UAV and, in response, direct fragmentation of one or more of the components apart from the UAV. In that way, a controlled, directed fragmentation of the UAV can be accomplished upon any disruption to the flight operation of the UAV.

First claim

At least the following is claimed:

1. An unmanned aerial vehicle (UAV), comprising:
a plurality of components of the UAV;
a flight controller configured to determine a flight path and control flight operation of the UAV;
a fragmentation controller configured to:
evaluate the flight path and flight conditions of the UAV;
develop a fragmentation sequence for a set of the plurality of components based on the flight path and the flight conditions, the fragmentation sequence including a release timing and a release location for a component among the plurality of components of the UAV;
detect a disruption in the flight operation of the UAV; and
direct fragmentation of the component apart from the UAV at the release timing and at the release location according to the fragmentation sequence in response to the disruption in the flight operation of the UAV.

2. The UAV according to claim 1 , wherein, to develop the fragmentation sequence, the fragmentation controller is further configured to:
analyze at least one meteorological condition along the flight path;
analyze topography of terrain along the flight path;
identify a plurality of disposition locations on the terrain for directed disposition of one or more of the plurality of components of the UAV based on the topography of the terrain;
calculate the release timing and the release location for a release trajectory of the component to a disposition location among the plurality of disposition locations based on the at least one meteorological condition along the flight path.

3. The UAV according to claim 1 , wherein the fragmentation controller is further configured to calculate flight parameters for fragmentation of the component apart from the UAV, the flight parameters including at least one of a height, speed, pitch, yaw, or roll of the UAV.

4. The UAV according to claim 3 , wherein the fragmentation controller is further configured to control the flight operation of the UAV to approach the flight parameters for fragmentation of the component apart from the UAV at the release timing and at the release location.

5. A method to operate an unmanned aerial vehicle (UAV), comprising:
controlling, by at least one computing device of the UAV, flight operation of the UAV;
detecting, by the at least one computing device, a disruption in the flight operation of the UAV;
developing, by the at least one computing device, a fragmentation sequence for a component of the UAV based on a flight path of the UAV; and
directing, by the at least one computing device, fragmentation of the component apart from the UAV according to the fragmentation sequence.

6. The method according to claim 5 , wherein developing the fragmentation sequence further comprises:
evaluating, by the at least one computing device, the flight path and flight conditions of the UAV;
analyzing, by the at least one computing device, topography of terrain along the flight path; and
identifying, by the at least one computing device, a plurality of disposition locations on the terrain for directed disposition of the component of the UAV.

7. The method according to claim 6 , wherein developing the fragmentation sequence further comprises:
assigning, by the at least one computing device, the component of the UAV to a disposition location among the plurality of disposition locations; and
calculating, by the at least one computing device, a release timing and a release location for a release trajectory of the component of the UAV to the disposition location.

8. The method according to claim 7 , further comprising:
evaluating, by the at least one computing device, a resulting flight trajectory of the UAV after the fragmentation of the component apart from the UAV; and
calculating, by the at least one computing device, another release timing and another release location for another component of the UAV based on the resulting flight trajectory of the UAV.

9. The method according to claim 7 , wherein directing the fragmentation of the component apart from the UAV further comprises releasing the component at the release timing and at the release location.

10. The method according to claim 5 , wherein:
the UAV includes a plurality of components; and
developing the fragmentation sequence further comprises:
identifying, by the at least one computing device, a plurality of disposition locations on terrain for directed disposition of the plurality of components of the UAV; and
assigning, by the at least one computing device, one or more of the plurality of components of the UAV to individual ones of the plurality of disposition locations.

11. The method according to claim 5 , further comprising calculating, by the at least one computing device, flight parameters for the fragmentation of the component apart from the UAV.

12. The method according to claim 11 , further comprising controlling, by the at least one computing device, the flight operation of the UAV to approach the flight parameters for fragmentation of the component apart from the UAV.

13. An unmanned aerial vehicle (UAV), comprising:
a flight controller configured to determine a flight path and control flight operation of the UAV; and
a fragmentation controller configured to:
develop a fragmentation sequence for a component of the UAV;
detect a disruption in the flight operation of the UAV; and
direct fragmentation of the component apart from the UAV according to the fragmentation sequence in response to the disruption in the flight operation of the UAV.

14. The UAV according to claim 13 , wherein, to develop the fragmentation sequence, the fragmentation controller is further configured to:
evaluate the flight path of the UAV;
analyze topography of terrain along the flight path; and
identify a plurality of disposition locations on the terrain for directed disposition of the component of the UAV based on the flight path and the topography of the terrain.

15. The UAV according to claim 14 , wherein, to develop the fragmentation sequence, the fragmentation controller is further configured to:
assign the component of the UAV to a disposition location among the plurality of disposition locations;
analyze at least one meteorological condition along the flight path;
calculate a release timing and a release location for a release trajectory of the component of the UAV to the disposition location based on the at least one meteorological condition;
evaluate a resulting flight trajectory of the UAV after the fragmentation of the component apart from the UAV; and
update a release timing and a release location for a release trajectory of another component of the UAV based on the resulting flight trajectory of the UAV.

16. The UAV according to claim 15 , wherein, to direct the fragmentation of the component, the fragmentation controller is further configured to release the component at the release timing and at the release location.

17. The UAV according to claim 13 , wherein:
the UAV includes a plurality of components; and
to develop the fragmentation sequence, the fragmentation controller is further configured to:
identify a plurality of disposition locations on terrain for directed disposition of the plurality of components of the UAV; and
assign one or more of the plurality of components of the UAV to individual ones of the plurality of disposition locations.

18. The UAV according to claim 13 , wherein the fragmentation controller is further configured to:
evaluate a resulting flight trajectory of the UAV after the fragmentation of the component apart from

Assignees

• Amazon Tech Inc

Inventors

• Mishra Pragyana K
• Goyal Dushyant

Classifications

• B64U2201/10

  autonomous, i.e. by navigating independently from ground or air stations, e.g. by using inertial navigation systems [INS] · CPC title

• G05D1/101

  specially adapted for aircraft · CPC title

• B64C2201/128

  Operations & Transport · mapped topic

• G06Q10/0832

  Special goods or special handling procedures, e.g. handling of hazardous or fragile goods · CPC title

• B64C39/024

  of the remote controlled vehicle type, i.e. RPV · CPC title