Survivability system

• US 7,848,879 B2
• Filed: 12/04/2006
• Issued: 12/07/2010
• Est. Priority Date: 12/04/2006
• Status: Expired due to Fees

• Current Assignee: Lockheed Martin Corporation (Martin Marietta Corporation)
• Original Assignee: Lockheed Martin Corporation (Martin Marietta Corporation)
• Inventors: Herman, Carl R.
• Primary Examiner(s): Zanelli; Michael J.
• Application Number:
  US11/634,230
• Publication Number:
  US 20080133070A1
• Time in Patent Office: 1,464 Days
• Field of Search: None
• US Class Current: 701/200
• CPC Class Codes: G01C 21/20 Instruments for performing navigational calculations G01C21/24, G01C21/26 take precedence
• CPC Class Codes: G05D 1/0202 specially adapted to aircraft

Abstract

A system determines a course of action for a vehicle. The system includes an altitude module, a threat detection module, a route module, and a threat avoidance module. The altitude module contains a list of types of threats. The list includes a predetermined threshold time for maximum safe visibility by the vehicle for each type. The threat detection module detects threats. The route module stores a planned route for the vehicle. The threat avoidance module determines types of threats detected by the threat detection module. The threat avoidance module utilizes the predetermined threshold times from the altitude module for each threat detected by the threat detection module to determine whether the planned route may safely enter visibility range of each threat detected by the threat detection module.

Claims

1. A computer program product for determining a course of action for a vehicle, said computer program product comprising:

a first instruction for listing types of threats, each type including a predetermined threshold time for maximum safe visibility by the vehicle for each type;

a second instruction for detecting threats;

a third instruction for storing a planned route for the vehicle;

a fourth instruction for determining types of the threats detected by the vehicle;

a fifth instruction for utilizing the predetermined threshold times for each threat detected by the vehicle to determine whether the planned route may safely enter visibility range of each threat detected by the vehicle; and

a sixth instruction for determining a first elapsed time that the planned route brings the vehicle within the visibility range of a first threat detected by the vehicle.

2. The computer program product as set forth in claim 1 further including a seventh instruction for determining whether the first elapsed time is less than a predetermined threshold time of the first threat.

3. The computer program product as set forth in claim 2 further including an eighth instruction for maintaining the planned route of the vehicle if the first elapsed time is less than the predetermined threshold time of the first threat.

4. The computer program product as set forth in claim 2 further including an eighth instruction for rerouting the vehicle out of visibility of the first threat if the first elapsed time is greater than the predetermined threshold time of the first threat.

5. The computer program product as set forth in claim 1 further including a seventh instruction for determining a second elapsed time that the planned route brings the vehicle within the visibility range of a second threat detected by the vehicle.

6. The computer program product as set forth in claim 5 further including an eighth instruction for determining whether the second elapsed time is less than a predetermined threshold time of the second threat.

7. The computer program product as set forth in claim 6 further including a ninth instruction for maintaining the planned route of the vehicle if the second elapsed time is less than the predetermined threshold time of the second threat.

8. The computer program product as set forth in claim 6 further including a ninth instruction for rerouting the vehicle out of visibility of the second threat if the second elapsed time is greater than the predetermined threshold time of the second threat.

9. The computer program product as set forth in claim 8 further including a tenth instruction for alerting an operator of the vehicle of a deviation from the planned route.

10. A non-transitory computer readable medium storing executable instructions for performing a method for determining a course of action for a vehicle, the method comprising the steps of:

listing a plurality of types of threats and a predetermined threshold time for maximum safe visibility by the vehicle for each of the plurality of types;

detecting at least one threat;

storing a planned route for the vehicle;

determining an associated type of the plurality of types of threats for each of the detected at least one threat;

utilizing the predetermined threshold times associated with the determined threat type for each of the detected at least one threat module to determine whether the planned route may safely enter a visibility range of each of the at least one threat; and

determining a first elapsed time that the planned route brings the vehicle within a visibility range of a first threat of the at least one threat.

11. The non-transitory computer readable medium as set forth in claim 10, the method further comprising determining whether the first elapsed time is less than a predetermined threshold time of the first threat.

12. The non-transitory computer readable medium as set forth in claim 11, the method further comprising maintaining the planned route of the vehicle if the first elapsed time is less than the predetermined threshold time of the first threat.

13. The non-transitory computer readable medium as set forth in claim 11, the method further comprising rerouting the vehicle out of the visibility range of the first threat if the first elapsed time is greater than the predetermined threshold time of the first threat.

14. The non-transitory computer readable medium as set forth in claim 10, the method further comprising determining a second elapsed time that the planned route brings the vehicle within a visibility range of a second threat of the at least one threat.

15. The non-transitory computer readable medium as set forth in claim 14, the method further comprising determining whether the second elapsed time is less than a predetermined threshold time of the second threat.

16. The non-transitory computer readable medium as set forth in claim 15, the method further comprising maintaining the planned route of the vehicle if the second elapsed time is less than the predetermined threshold time of the second threat.

17. The non-transitory computer readable medium as set forth in claim 15, the method further comprising rerouting the vehicle out of visibility of the second threat if the second elapsed time is greater than the predetermined threshold time of the second threat.

18. The non-transitory computer readable medium as set forth in claim 10, the method further comprising communicating a deviation from the planned route to an operator of the vehicle.