# US 2017/0299398 A1 · Route re-planning using enemy force lethality projection

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- Number: US 2017/0299398 A1
- Document ID: US20170299398A1
- Status: Published application
- Kind: A1
- Application number: 15/334,010
- Filed: 2016-10-25
- Published: 2017-10-19
- Earliest claimed: 2012-03-14
- Assignees: Lockheed Martin Corporation
- Applicants: Lockheed Martin Corporation
- Inventors: James C. ROSSWOG; Carl R. HERMAN
- Web page: https://patentgrep.com/patent/US20170299398A1

## CPC

- G01C 21/20: Instruments for performing navigational calculations (G01C21/24, G01C21/26 take precedence)
- G01C 21/3415: {Dynamic re-routing, e.g. recalculating the route when the user deviates from calculated route or after detecting real-time traffic data or accidents}
- G01C 21/3461: {Preferred or disfavoured areas, e.g. dangerous zones, toll or emission zones, intersections, manoeuvre types or segments such as motorways, toll roads or ferries}
- G08G 5/34: for flight plan modification
- G01S 13/00: Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S 13/95: for meteorological use
- G01C: MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY (measuring liquid level G01F; radio navigation, determining distance or velocity by use of propagation effects, e.g. Doppler effects, propagation time, of radio waves, analogous arrangements using other waves G01S)
- G08G: TRAFFIC CONTROL SYSTEMS (guiding railway traffic, ensuring the safety of railway traffic B61L; arrangement of road signs or traffic signals E01F9/00; radar or analogous systems, sonar systems, lidar systems specially adapted for traffic control G01S13/91, G01S15/88, G01S17/88; {radar or analogous systems, sonar systems, lidar systems specially adapted for anti-collision purposes G01S13/93, G01S15/93, G01S17/93})
- G01S: RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES

## 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.

## Claims

### Claim at position 1

1-20. (canceled)

### Claim 21

A movement prediction system, comprising:
a processor coupled to a nontransitory computer readable medium bearing software instructions that, when executed by the processor, cause the processor to perform operations comprising
comparing threat location data for a 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 a moving threat location is outside or within the threshold geographical area boundary,
maintaining a current mission plan including a current mission route when the moving threat location is in the corresponding time/space threat threshold, and
predicting future movement of the threat based on the moving threat location when the moving threat location is outside of the corresponding time/space threat threshold.

### Claim 22 (depends on 21)

The movement prediction system of claim 21, wherein the operations further include assessing the impact of the threat moving outside the corresponding time/space threat threshold.

### Claim 23 (depends on 22)

The movement prediction system of claim 22, wherein the assessing the impact of the threat moving outside the corresponding time/space threat threshold comprises:
assessing survivability of the current mission plan; and
generating a new mission plan including a re-planned mission route, when the current mission plain is not survivable.

### Claim 24 (depends on 21)

The movement prediction system of claim 21, wherein the threat location data is obtained from a common operational picture database or a sensor system.

### Claim 25 (depends on 22)

The movement prediction system of claim 22, wherein the assessing the impact of the threat moving outside the corresponding time/space threat threshold comprises:
performing an updated multi-point survivability analysis with the processor using the predicted future movement of the threat as input;
determining, with the processor, whether the current mission plan is survivable based on the updated multi-point survivability analysis; and
generating a new mission plan including a re-planned mission route, when the current mission plan is not survivable.

### Claim 26 (depends on 25)

The movement prediction system of claim 25, wherein the new mission plan is generated by the processor according to a series of operations performed by the processor, the operations comprising:
predicting initial threat movements;
performing a multi-point survivability analysis; and
generating an initial mission plan including an initial mission route.

### Claim 27 (depends on 26)

The movement prediction system of claim 26, wherein the multi-point survivability analysis and the updated multi-point survivability analysis include determining the lethality of the threat at a plurality of locations.

### Claim 28 (depends on 26)

The movement prediction system of claim 26, wherein the performing the multi-point survivability analysis and the updated multi-point survivability analysis includes generating time/space thresholds for the threat at different times in a mission timeline.

### Claim 29

A computerized method of predicting movement of a moving threat, comprising:
maintaining, using a processor programmed to perform route re-planning, a current mission plan including a current mission route when the moving threat is located within a corresponding time/space threat threshold, the time/space threat threshold including a threshold geographical area boundary; and
predicting future movement of the moving threat based on a location of the moving threat when the moving threat is located outside of the corresponding time/space threat threshold.

### Claim 30 (depends on 29)

The computerized method of claim 29, further comprising:
assessing the impact of the moving threat outside the corresponding time/space threat threshold.

### Claim 31 (depends on 30)

The computerized method of claim 30, wherein the assessing the impact of the moving threat outside the corresponding time/space threat threshold comprises:
assessing survivability of the current mission plan; and
generating a new mission plan including a re-planned mission route, when the current mission plain is not survivable.

### Claim 32 (depends on 29)

The computerized method of claim 29, further comprising:
obtaining threat location data for the moving threat from a common operational picture database or a sensor system.

### Claim 33 (depends on 30)

The computerized method of claim 30, wherein the assessing the impact of the moving threat outside the corresponding time/space threat threshold comprises:
performing an updated multi-point survivability analysis with the processor using the predicted future movement of the threat as input;
determining, with the processor, whether the current mission plan is survivable based on the updated multi-point survivability analysis; and
generating a new mission plan including a re-planned mission route, when the current mission plan is not survivable.

### Claim 34 (depends on 33)

The computerized method of claim 33, wherein the new mission plan is generated by the processor according to a series of operations performed by the processor, the operations comprising:
predicting initial threat movements;
performing a multi-point survivability analysis; and
generating an initial mission plan including an initial mission route.

### Claim 35 (depends on 34)

The computerized method of claim 34, wherein the multi-point survivability analysis and the updated multi-point survivability analysis include determining the lethality of the moving threat at a plurality of locations.

### Claim 36 (depends on 34)

The computerized method of claim 34, wherein the performing the multi-point survivability analysis and the updated multi-point survivability analysis includes generating time/space thresholds for the moving threat at different times in a mission timeline.

### Claim 37

A non-transitory computer-readable medium having software instructions stored thereon that, when executed by a processor, cause the processor to perform operations comprising:
maintaining a current mission plan including a current mission route when a moving threat is located within a corresponding time/space threat threshold, the time/space threat threshold including a threshold geographical area boundary; and
predicting future movement of the threat based on a location of the moving threat when the moving threat is located outside of the corresponding time/space threat threshold.

### Claim 38 (depends on 37)

The non-transitory computer-readable medium of claim 37, wherein the operations further comprise:
assessing survivability of the current mission plan; and
generating a new mission plan including a re-planned mission route, when the current mission plain is not survivable.

### Claim 39 (depends on 37)

The non-transitory computer-readable medium of claim 37, wherein the operations further comprise:
performing an updated multi-point survivability analysis with the processor using the predicted future movement of the threat as input;
determining, with the processor, whether the current mission plan is survivable based on the updated multi-point survivability analysis; and
generating a new mission plan including a re-planned mission route, when the current mission plan is not survivable.
