Evaluation tool for vehicle survivability planning
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
G06F-017/00
G06F-007/00
출원번호
US-0463695
(2012-05-03)
등록번호
US-8831793
(2014-09-09)
발명자
/ 주소
Herman, Carl R.
출원인 / 주소
Lockheed Martin Corporation
대리인 / 주소
Wolf, Greenfield & Sacks, P.C.
인용정보
피인용 횟수 :
4인용 특허 :
41
초록▼
Systems and methods for improving vehicle survivability. In some embodiments, an evaluation model may be built based at least in part on mission information. The mission information may comprise vehicle information regarding at least one vehicle and threat information regarding a plurality of threat
Systems and methods for improving vehicle survivability. In some embodiments, an evaluation model may be built based at least in part on mission information. The mission information may comprise vehicle information regarding at least one vehicle and threat information regarding a plurality of threats to the at least one vehicle. The evaluation model may be used to assign a numerical measure to each potential action of a plurality of potential actions for the at least one vehicle, where the numerical measure may be based on measures of signature exposure relating to multiple threats of the plurality of threats. A sequence of actions to be executed by the at least one vehicle may be selected based at least in part on the respective numerical measures assigned to the plurality of potential actions, to improve the at least one vehicle's survivability against the plurality of threats.
대표청구항▼
1. A system for improving vehicle survivability, comprising at least one processor programmed to: build an evaluation model based at least in part on mission information, the mission information comprising vehicle information regarding at least one vehicle, the mission information further comprising
1. A system for improving vehicle survivability, comprising at least one processor programmed to: build an evaluation model based at least in part on mission information, the mission information comprising vehicle information regarding at least one vehicle, the mission information further comprising threat information regarding a plurality of threats to the at least one vehicle, wherein the evaluation model is based on a plurality of cells that collectively represent a physical region to be traversed by the at least one vehicle;use the evaluation model to assign a numerical measure to each potential action of a plurality of potential actions for the at least one vehicle, the numerical measure being based at least in part on first and second measures of signature exposure of the at least one vehicle resulting from executing the potential action, wherein the first measure of signature exposure relates to a first threat of the plurality of threats and the second measure of signature exposure relates to a second threat of the plurality of threats; andselect, based at least in part on the respective numerical measures assigned to the plurality of potential actions, a sequence of actions to be executed by the at least one vehicle to improve the at least one vehicle's survivability against the plurality of threats, wherein the sequence of actions comprises a first action by which the at least one vehicle is to enter a first cell in the physical region and a second action by which the at least one vehicle is to leave the first cell and enter a second cell in the physical region. 2. The system of claim 1, wherein: the vehicle information comprises at least one constraint;for at least one potential action of the plurality of potential actions, the corresponding numerical measure is further based on whether the at least one constraint is violated as a result of executing the at least one potential action. 3. The system of claim 2, wherein the at least one constraint comprises an obscuration constraint for limiting obscuration of at least one sensor of the at least one vehicle with respect to at least one threat of the plurality of threats. 4. The system of claim 2, wherein the at least one constraint comprises a countermeasure effectiveness constraint for maintaining effectiveness of at least one countermeasure of the at least one vehicle against at least one threat of the plurality of threats. 5. The system of claim 2, wherein the at least one constraint comprises a vulnerability constraint for reducing exposure of at least one vulnerable portion of the at least one vehicle to at least one threat of the plurality of threats. 6. The system of claim 1, wherein the at least one processor is further programmed to: visually render a representation of the at least one vehicle in an N-dimensional space; andvisually render an (N−1)-dimensional object in the N-dimensional space, wherein, for each point on the (N−1)-dimensional object, a distance between the representation of the at least one vehicle and the point on the (N−1)-dimensional object is indicative of a quantity of interest along a direction from the representation of the at least one vehicle to the point on the (N−1)-dimensional object. 7. The system of claim 6, wherein the quantity of interest is indicative of whether at least one sensor of the at least one vehicle is obscured along the direction from the representation of the at least one vehicle to the point on the (N−1)-dimensional object. 8. The system of claim 6, wherein the quantity of interest is indicative of how vulnerable the at least one vehicle is to a hit from the direction from the point on the (N−1)-dimensional object to the representation of the at least one vehicle. 9. A method for improving vehicle survivability, the method comprising acts of: building, by at least one processor, an evaluation model based at least in part on mission information, the mission information comprising vehicle information regarding at least one vehicle, the mission information further comprising threat information regarding a plurality of threats to the at least one vehicle, wherein the evaluation model is based on a plurality of cells that collectively represent a physical region to be traversed by the at least one vehicle;using, by the at least one processor, the evaluation model to assign a numerical measure to each potential action of a plurality of potential actions for the at least one vehicle, the numerical measure being based at least in part on first and second measures of signature exposure of the at least one vehicle resulting from executing the potential action, wherein the first measure of signature exposure relates to a first threat of the plurality of threats and the second measure of signature exposure relates to a second threat of the plurality of threats; andselecting, by the at least one processor, based at least in part on the respective numerical measures assigned to the plurality of potential actions, a sequence of actions to be executed by the at least one vehicle to improve the at least one vehicle's survivability against the plurality of threats, wherein the sequence of actions comprises a first action by which the at least one vehicle is to enter a first cell in the physical region and a second action by which the at least one vehicle is to leave the first cell and enter a second cell in the physical region. 10. The method of claim 9, wherein: the vehicle information comprises at least one constraint;for at least one potential action of the plurality of potential actions, the corresponding numerical measure is further based on whether the at least one constraint is violated as a result of executing the at least one potential action. 11. The method of claim 10, wherein the at least one constraint comprises an obscuration constraint for limiting obscuration of at least one sensor of the at least one vehicle with respect to at least one threat of the plurality of threats. 12. The method of claim 10, wherein the at least one constraint comprises a countermeasure effectiveness constraint for maintaining effectiveness of at least one countermeasure of the at least one vehicle against at least one threat of the plurality of threats. 13. The method of claim 10, wherein the at least one constraint comprises a vulnerability constraint for reducing exposure of at least one vulnerable portion of the at least one vehicle to at least one threat of the plurality of threats. 14. The method of claim 9 further comprising: visually rendering a representation of the at least one vehicle in an N-dimensional space; andvisually rendering an (N−1)-dimensional object in the N-dimensional space, wherein, for each point on the (N−1)-dimensional object, a distance between the representation of the at least one vehicle and the point on the (N−1)-dimensional object is indicative of a quantity of interest along a direction from the representation of the at least one vehicle to the point on the (N−1)-dimensional object. 15. The method of claim 14, wherein the quantity of interest is indicative of whether at least one sensor of the at least one vehicle is obscured along the direction from the representation of the at least one vehicle to the point on the (N−1)-dimensional object. 16. The method of claim 14, wherein the quantity of interest is indicative of how vulnerable the at least one vehicle is to a hit from the direction from the point on the (N−1)-dimensional object to the representation of the at least one vehicle. 17. At least one non-transitory computer-readable storage medium storing processor-executable instructions that, when executed by at least one processor, cause the at least one processor to: build an evaluation model based at least in part on mission information, the mission information comprising vehicle information regarding at least one vehicle, the mission information further comprising threat information regarding a plurality of threats to the at least one vehicle, wherein the evaluation model is based on a plurality of cells that collectively represent a physical region to be traversed by the at least one vehicle;use the evaluation model to assign a numerical measure to each potential action of a plurality of potential actions for the at least one vehicle, the numerical measure being based at least in part on first and second measures of signature exposure of the at least one vehicle resulting from executing the potential action, wherein the first measure of signature exposure relates to a first threat of the plurality of threats and the second measure of signature exposure relates to a second threat of the plurality of threats; andselect, based at least in part on the respective numerical measures assigned to the plurality of potential actions, a sequence of actions to be executed by the at least one vehicle to improve the at least one vehicle's survivability against the plurality of threats, wherein the sequence of actions comprises a first action by which the at least one vehicle is to enter a first cell in the physical region and a second action by which the at least one vehicle is to leave the first cell and enter a second cell in the physical region. 18. The at least one non-transitory computer-readable storage medium of claim 17, wherein: the vehicle information comprises at least one constraint;for at least one potential action of the plurality of potential actions, the corresponding numerical measure is further based on whether the at least one constraint is violated as a result of executing the at least one potential action. 19. The at least one non-transitory computer-readable storage medium of claim 18, wherein the at least one constraint comprises an obscuration constraint for limiting obscuration of at least one sensor of the at least one vehicle with respect to at least one threat of the plurality of threats. 20. The at least one non-transitory computer-readable storage medium of claim 18, wherein the at least one constraint comprises a countermeasure effectiveness constraint for maintaining effectiveness of at least one countermeasure of the at least one vehicle against at least one threat of the plurality of threats.
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