Route re-planning using enemy force lethality projection

Patent metadata

Field	Value
Publication number	US-9500488-B2
Application number	US-201615009892-A
Country	US
Kind code	B2
Filing date	Jan 29, 2016
Priority date	Mar 14, 2012
Publication date	Nov 22, 2016
Grant date	Nov 22, 2016

Abstract

A method, system and computer readable media for route re-planning including generating enemy force movement predictions to be used during mission planning. During a mission, enemy force movements can be compared to the predictions. By using enemy force movement predictions for an initial comparison, the enemy force movements may only need to be compared to the own force mission plan if the enemy forces deviate from the predictions. When enemy force movement deviates from the predictions, new enemy force movement predictions can be generated. The new enemy force movement predictions can then be compared to the own force mission plan to determine if a route re-plan is needed. The route can be re-planned to determine a route that reduces or eliminates the chance of a lethal encounter with an enemy or threat.

First claim

What is claimed is:

1. A threat assessment system, comprising:
a processor coupled to a non-transitory computer readable medium bearing software instructions that, when executed by the processor, cause the processor to perform operations including
receiving an original mission plan and threat location data for a threat at the processor,
comparing the threat location data for the threat to a stored time/space threat threshold corresponding to the threat, the stored time/space threshold including a threshold geographical area boundary, and determining, based on the comparison, whether a moving threat location has moved outside or moved within the threshold geographical area boundary,
when the processor determines that the moving threat location has moved within the threshold geographical area boundary, maintaining the original mission plan, and
when the processor determines that the moving threat location has moved outside the threshold geographical area boundary, assessing the impact of the threat moving outside the threshold geographical area boundary,

wherein the assessing the impact of the threat moving outside the threshold geographical area boundary includes,
generating, with the processor, new threat movement predictions,
performing a multi-point survivability analysis with the processor using the new threat movement predictions as input, the multi-point survivability analysis including generating a new time/space threshold for the threat at each of a plurality of predetermined times in a mission timeline and including determining the lethality of the threat at a plurality of locations,
determining, with the processor, whether a current mission plan of a vehicle is survivable based on the multi-point survivability analysis, and
when the original mission plan is not survivable, generating a new mission plan including a re-planned route for the vehicle, the re-planned route being a different route than an original route associated with the original mission plan.

2. The system of claim 1 , wherein the threat location data is received wirelessly at the vehicle from a location remote from the vehicle during execution of the original mission plan.

3. The system of claim 1 , wherein the assessing the impact of the threat moving outside the threshold geographical area boundary further comprises:
assessing own force survivability and generating a reflexive response signal when own force is in immediate danger.

4. The system of claim 3 , wherein the operations further include generating a warning display within the vehicle in response to the reflexive response signal.

5. The system of claim 1 , wherein the original mission plan is generated by the processor according to a series of operations performed by the processor, the operations including:
predicting initial threat movements;
performing an initial multi-point survivability analysis using the initial threat movement predictions as input, the initial multi-point survivability analysis including generating the stored time/space threshold for the threat at each of a plurality of predetermined times in an original mission timeline and including determining the lethality of a threat at a plurality of locations; and
generating the original mission plan including an original route for the vehicle.

6. The system of claim 1 , wherein the threat location data is obtained from at least one selected from a sensor system and a common operational picture database.

7. A method for threat assessment, the method comprising:
comparing, by a processor coupled to a non-transitory computer readable medium and programmed to perform threat assessment, threat location data for a moving threat to a stored time/space threat threshold corresponding to the threat, the stored time/space threshold including a threshold geographical area boundary;
determining, based on the comparison, whether the threat has moved outside the threshold geographical area boundary;
when the threat has moved outside the threshold geographical area boundary, assessing the impact of the threat moving outside the threshold geographical area boundary;
generating, with the processor, new threat movement predictions;
performing an multi-point survivability analysis with the processor using the new threat movement predictions as input;
determining, with the processor, whether a current mission plan of a vehicle is survivable based on the multi-point survivability analysis; and
when the current mission plan is not survivable, generating a new mission plan including a re-planned mission route for the vehicle.

8. The method of claim 7 , further comprising:
repeating the comparing and the determining to determine whether the threat has moved outside or moved within the threshold geographical area boundary; and
when, based on the repeating, the threat has moved within the threshold geographical area boundary, maintaining the current mission plan.

9. The method of claim 7 , wherein an initial mission plan is generated by the processor according to a series of operations performed by the processor, the operations including:
predicting initial threat movements; and
performing an initial multi-point survivability analysis; and
generating an initial mission route.

10. The method of claim 9 , wherein the performing an initial multi-point survivability analysis and the multi-point survivability analysis include determining the lethality of the threat at a plurality of locations.

11. The method of claim 9 , wherein performing the initial multi-point survivability analysis and the multi-point survivability analysis includes generating time/space thresholds for each threat at each of a plurality of predetermined times in a mission timeline.

12. A non-transitory computer-readable medium having software instructions stored thereon that, when executed by a processor, cause the processor to perform operations comprising:
comparing threat location data for a moving threat to a time/space threat threshold corresponding to the threat, the time/space threshold including a threshold geographical area boundary;
determining whether the threat has moved outside the threshold geographical area boundary;
when the threat has moved outside the threshold geographical area boundary, assessing the impact of the threat moving outside the threshold geographical area boundary;
generating, with the processor, new threat movement predictions;
performing a multi-point survivability analysis with the processor using the new threat movement predictions as input;
determining, with the processor, whether a current mission plan of the vehicle is survivable based on the multi-point survivability analysis; and
when the current mission plan is not survivable, generating a new mission plan including a re-planned mission route for the vehicle.

13. The non-transitory computer-readable medium of claim 12 , wherein the operations further comprise maintaining the current mission plan when the threat has moved within the threshold geographical area boundary.

14. The non-transitory computer-readable medium of claim 12 , wherein the operations further comprise:
assessing, with the processor, force survivability of the vehicle and generating a reflexive response signal when the vehicle is in immediate danger.

15. The non-transitory computer-readable medium of claim 12 , wherein an initial mission plan is generated by the processor according to a series of operations performed by the processor, the operations including:
predicting initial threat movements;
performing an initial multi-point survivability analysis; and
generating an i

Assignees

• Lockheed Corp

Inventors

• Rosswog James C
• Herman Carl R

Classifications

• G01C21/3415 Primary

  Dynamic re-routing, e.g. recalculating the route when the user deviates from calculated route or after detecting real-time traffic data or accidents · CPC title

• G01C21/20 Primary

  Instruments for performing navigational calculations (G01C21/24, G01C21/26 take precedence) · CPC title

• G08G5/34

  for flight plan modification · CPC title

• G08G5/0039

  Physics · mapped topic

• G06K9/62

  Physics · mapped topic