IP Library Granted Patent US 7,513,459
Granted Patent B2
US 7,513,459 · App. 11/670,653 · Granted Apr 7, 2009

Method and associated apparatus for capturing, servicing, and de-orbiting earth satellites using robotics

Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space Administration
View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 7,513,459
App. No.
11/670,653
Granted
Apr 7, 2009
Kind
B2
Abstract

This invention is a method and supporting apparatus for autonomously capturing, servicing and de-orbiting a free-flying spacecraft, such as a satellite, using robotics. The capture of the spacecraft includes the steps of optically seeking and ranging the satellite using LIDAR, and matching tumble rates, rendezvousing and berthing with the satellite. Servicing of the spacecraft may be done using supervised autonomy, which is allowing a robot to execute a sequence of instructions without intervention from a remote human-occupied location. These instructions may be packaged at the remote station in a script and uplinked to the robot for execution upon remote command giving authority to proceed. Alternately, the instructions may be generated by Artificial Intelligence (AI) logic onboard the robot. In either case, the remote operator maintains the ability to abort an instruction or script at any time as well as the ability to intervene using manual override to teleoperate the robot.

Claims (24)

1. A method of capturing a first free-flying spacecraft with a second free-flying spacecraft, comprising the steps of:

a) autonomously identifying the first spacecraft,

b) autonomously pursuing the first spacecraft with the second spacecraft, and

c) securing the first spacecraft to the second spacecraft using an attachment device, wherein the first spacecraft is autonomously identified by the second spacecraft by comparing file images of the first spacecraft with real time images of the first spacecraft collected by the second spacecraft.

2. A method of capturing a first free-flying spacecraft with a second free-flying spacecraft, according to the limitations of claim 1 , wherein the attachment device includes a robotic grappling arm on the second spacecraft.

3. A method of capturing a first free-flying spacecraft with a second free-flying spacecraft, according to the limitations of claim 1 , wherein the attachment device includes berthing pins affixed to the first spacecraft.

4. A method of capturing a first free-flying spacecraft with a second free-flying spacecraft, according to the limitations of claim 1 , further comprising the steps of launching the second spacecraft into space and establishing a communications link between the second spacecraft and a remote operator.

5. A method capturing a first free-flying spacecraft with a second free-flying spacecraft, according to the limitations of claim 4 , wherein the remote operator can manually override the autonomous identification of the first spacecraft

6. A method of capturing a first free-flying spacecraft with a second free-flying spacecraft, according to the limitations of claim 4 , wherein the remote operator can manually override the autonomous pursuit of the first spacecraft.

7. A method of capturing a first free-flying spacecraft with a second free-flying spacecraft, according to the limitations of claim 4 , wherein the step of securing the first spacecraft to the second spacecraft is accomplished autonomously.

8. A method of capturing a first free-flying spacecraft with a second free-flying spacecraft, according to the limitations of claim 7 , wherein the autonomous securing of the first spacecraft to the second spacecraft can be manually overridden by the remote operator.

9. A method of capturing a first free-flying spacecraft with a second free-flying spacecraft, according to the limitations of claim 1 , wherein the step of autonomously identifying the first spacecraft is accomplished using Artificial Intelligence logic.

10. A method of capturing a first free-flying spacecraft with a second free-flying spacecraft, according to the limitations of claim 1 , further comprising the steps of launching the second spacecraft into space and establishing a communications link between the second spacecraft and a remote operator.

11. A method of capturing a first free-flying spacecraft with a second free-flying spacecraft, according to the limitations of claim 1 , wherein a remote operator can manually override the autonomous identification of the first spacecraft.

12. A method of capturing a first free-flying spacecraft with a second free-flying spacecraft, according to the limitations of claim 1 , wherein the step of autonomously identifying the first spacecraft is accomplished using Artificial Intelligence logic.

13. A method of capturing a first free-flying spacecraft with a second free-flying spacecraft, comprising the steps of:

a) autonomously identifying the first spacecraft,

b) autonomously pursuing the first spacecraft with the second spacecraft, and

c) securing the first spacecraft to the second spacecraft using an attachment device, wherein the first spacecraft is autonomously pursued by the second spacecraft by comparing file images of the first spacecraft with real time images of the first spacecraft collected by the second spacecraft.

14. A method of capturing a first free-flying spacecraft with a second free-flying spacecraft, according to the limitations of claim 13 , wherein the second spacecraft has already captured another free-flying spacecraft.

15. A method of capturing a first free-flying spacecraft with a second free-flying spacecraft, according to the limitations of claim 13 , wherein the step of autonomously pursuing the first spacecraft is accomplished using Artificial Intelligence logic.

16. A method of capturing a first free-flying spacecraft with a second free-flying spacecraft, according to the limitations of claim 13 , further comprising the steps of launching the second spacecraft into space and establishing a communications link between the second spacecraft and a remote operator.

17. A method of capturing a first free-flying spacecraft with a second free-flying spacecraft, according to the limitations of claim 13 , wherein a remote operator can manually override the autonomous pursuit of the first spacecraft.

18. A method of capturing a first free-flying spacecraft with a second free-flying spacecraft, according to the limitations of claim 13 , wherein the step of autonomously pursuing the first spacecraft is accomplished using Artificial Intelligence logic.

Continuity (2)
Division 1112459200 · May 6, 2005
Related Publication 20070164164A1 · Jul 19, 2007