Systems and methods for maneuvering a package following in-flight release from an unmanned aerial vehicle (UAV)

• US 9,896,182 B1
• Filed: 11/22/2016
• Issued: 02/20/2018
• Est. Priority Date: 06/26/2015
• Status: Active Grant

• Current Assignee: Amazon Technologies, Inc. (Amazon.com, Inc.)
• Original Assignee: Amazon Technologies, Inc. (Amazon.com, Inc.)
• Inventors: Beckman, Brian C., Haskin, Menashe, Rolnik, Michael, Vule, Yan
• Primary Examiner(s): Davis, Richard G
• Application Number:
  US15/359,512
• Time in Patent Office: 455 Days
• CPC Class Codes: B64C 1/22 Other structures integral with fuselages to facilitate loading , e.g. cargo bays, cranes
• CPC Class Codes: B64D 1/10 Stowage arrangements for the devices in aircraft
• CPC Class Codes: B64D 1/12 Releasing
• CPC Class Codes: B64D 17/00 Parachutes non canopied parachutes B64D19/00
• CPC Class Codes: B64U 2101/60 for transporting passengers; for transporting goods other than weapons
• CPC Class Codes: G05D 1/105 specially adapted for unpowered flight, e.g. glider, parachuting, forced landing parachutes per se B64D17/00
• CPC Class Codes: G05D 1/106 Change initiated in response to external conditions, e.g. avoidance of elevated terrain or of no-fly zones

Abstract

A package delivery system can be implemented to forcefully propel a package from an unmanned aerial vehicle (UAV), while the UAV is in motion. The UAV can apply a force onto the package that alters its descent trajectory from a parabolic path to a vertical descent path. The package delivery system can apply the force onto the package in a number of different ways. For example, pneumatic actuators, electromagnets, spring coils, and parachutes can generate the force that establishes the vertical descent path of the package. Further, the package delivery system can also monitor the package during its vertical descent. The package can be equipped with one or more control surfaces. Instructions can be transmitted from the UAV via an RF module that cause the one or more controls surfaces to alter the vertical descent path of the package to avoid obstructions or to regain a stable orientation.

Claims

1. An Unmanned Aerial Vehicle (UAV) comprising:

a launch mechanism coupled to the UAV, the launch mechanism configured to apply a predetermined force to a package, the predetermined force to cause the package to be projected from the UAV in a second direction, the second direction being different from a first direction of travel of the UAV, and commence a vertical descent path toward a delivery destination;

a coupling structure that is coupled to the launch mechanism, the coupling structure configured to selectively couple the package to the launch mechanism during transport of the package by the UAV; and

a package launch system communicatively coupled to at least the launch mechanism of the UAV, the package launch system to determine at least one of the predetermined force or the second direction to release the package from the UAV.

2. The UAV of claim 1, wherein the launch mechanism comprises a lever arm rotatably coupled to a pivot structure, the pivot structure configured to cause the lever arm to rotate from a first position to a second position to generate the predetermined force.

3. The UAV of claim 2, further comprising:

a guide rail to constrain movement of the pivot structure along a linear path; and

an actuator to cause the pivot structure to move along the linear path to generate a component of the predetermined force.

4. The UAV of claim 2, wherein a length of the lever arm is selected to amplify a force imparted on the package as the predetermined force.

5. The UAV of claim 2, further comprising a biasing device coupled to at least one of the pivot structure or the lever arm, the biasing device to store potential energy that is released upon rotation of the lever arm to contribute to the predetermined force.

6. A package projection apparatus comprising:

a launch mechanism coupled to an Unmanned Aerial Vehicle (UAV), the launch mechanism configured to apply a predetermined force to a package while the UAV is in-flight, the predetermined force to cause the package to be projected from the UAV; and

a package launch controller coupled to the UAV to cause activation of the launch mechanism, the package launch controller determining the predetermined force.

7. The package projection apparatus of claim 6, wherein the UAV includes a first acceleration, and wherein the predetermined force causes the package to commence a second acceleration that at least partially counteracts the first acceleration of the UAV.

8. The package projection apparatus of claim 6, wherein the launch mechanism projects the package in a lateral direction that is non-congruent with a directionality of gravitational pull.

9. The package projection apparatus of claim 6, wherein the launch mechanism further comprises:

a frame;

a pivot structure coupled to the frame; and

a lever arm rotatably coupled to the pivot structure, the pivot structure configured to allow the lever arm to rotate from a first position to a second position to generate the predetermined force.

10. The package projection apparatus of claim 9, further comprising a biasing device to bias the lever arm toward the second position, the biasing device coupled to the frame and the lever arm, and wherein the package launch controller activates the launch mechanism by releasing the lever arm at the first position to enable the pivot structure to move the pivot arm toward the second position.

11. The package projection apparatus of claim 6, wherein the launch mechanism further comprises a guide rail to direct the predetermined force along a selected direction.

12. The package projection apparatus of claim 11, wherein the launch mechanism further comprises at least one of a pneumatic actuator or a spring coil to cause the package to traverse along the guide rail.

13. The package projection apparatus of claim 6, further comprising a coupling structure that is coupled to the launch mechanism, the coupling structure configured to selectively couple the package to the launch mechanism during transport from ground level to a launch location, and to uncouple from the launch mechanism at or proximate to the launch location.

14. An apparatus comprising:

a package coupling structure to selectively couple a package to a vehicle during transport of the package by the vehicle; and

a launch mechanism coupled to the package coupling structure, the launch mechanism imparting a predetermined force on the coupling structure, the predetermined force to cause the package to be released from the vehicle in a second direction, the second direction being different from a first direction of travel of the vehicle after the package is uncoupled from the package coupling structure.

15. The apparatus of claim 14, further comprising a guide rail, wherein the launch mechanism is moveable about the guide rail along the second direction to impart the predetermined force on the coupling structure.

16. The apparatus of claim 14, wherein the launch mechanism includes a lever arm rotatably coupled to a pivot structure, the pivot structure configured to cause the lever arm to rotate from a first position to a second position to generate the predetermined force.

17. The apparatus of claim 16, wherein the launch mechanism further includes a guide rail, and wherein the pivot structure is moveable about the guide rail to generate at least a portion of the predetermined force.

18. The apparatus of claim 16, wherein the lever arm is secured in the first position during transit of the package, and, after release from the first position, the lever arm moves to the second position at least due to gravitational force.

19. The apparatus of claim 14, wherein the launch mechanism includes a biasing device to generate at least a portion of the predetermined force.

20. The apparatus of claim 14, further comprising:

an airframe to support at least the launch mechanism; and

a plurality of propulsion units to generate thrust to cause movement of the airframe.