[특허]Route search planner

Route search planner 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	G01C-021/00 F41G-007/34
출원번호	US-0834867 (2010-07-12)
등록번호	US-9127913 (2015-09-08)
발명자 / 주소	Neff, Michael G. Cheng, Shirley N. Johnson, Ted L. Lee, Chang-Shaung R.
출원인 / 주소	The Boeing Company
인용정보	피인용 횟수 : 0 인용 특허 : 34

초록 ▼

Route search planner methods and systems are described. In an embodiment, a probability map can be generated from previous sensor scans combined with a projected target location of relocatable targets in a target area. A route can be generated by a route generator, based at least in part on the probability map, and based on optimal system performance capabilities utilized to search for at least one of the relocatable targets. A search manager can then assign an evaluation criteria value to the route based on route evaluation criteria, and compare the evaluation criteria value to other evaluation criteria values corresponding to respective previously generated routes to determine an optimal route. The search manager can then determine whether to generate one or more additional routes and assign additional evaluation criteria values for comparison to determine the optimal route.

대표청구항 ▼

1. A method of planning a route for a vehicle including onboard sensors, the method comprising: (a) using an initial route to generate a plurality of possible new routes that the vehicle could follow during a mission, wherein generating the plurality of possible new routes includes generating a probability map from previous sensor scans combined with a projected target location of one or more relocatable targets in a target area; and generating new routes by which to search for at least one of the relocatable targets, the new routes being generated based at least in part on the probability map;(b) determining a contribution towards mission accomplishment that would result from utilization of the sensors along each possible new route, wherein determining the contribution includes assigning an evaluation criteria value to the new routes based on route evaluation criteria, the evaluation criteria value being comparable to one or more evaluation criteria values corresponding to respective previously generated routes to determine an optimal route;(c) using the contributions to select one of the possible new routes, where the selected route results in a larger contribution towards mission accomplishment; and(d) returning to step (a) but using the selected route to generate a plurality of possible new routes;whereby a route that best accomplishes the mission is iteratively produced. 2. The method of claim 1 wherein each new route is generated as a flight path for an airborne platform to search and locate the at least one relocatable target. 3. The method of claim 1, wherein the previous sensor scans include previous sensor scans of a region in the target area, and wherein the generation of the new routes is additionally based at least in part on an initial route heuristic. 4. The method of claim 1, further comprising developing the projected target location based on target characteristics combined with a previously known target location projected into the future by a future time input. 5. The method of claim 4, further comprising: receiving a targeting input as at least one of: a sensor scan input; a data link input; and determining the previously known target location from the targeting input. 6. The method of claim 1, wherein the vehicle also includes autonomous target recognition capability, and wherein the evaluation criteria is based on a probability-based prediction of onboard sensor and autonomous target recognition performance. 7. The method of claim 1, wherein the vehicle also includes commit logic containing mission-specific criteria for determining whether the vehicle can commit to a particular target, including at least one of the likelihood the vehicle can reach an object, the likelihood the object is of a mission-desired type, and the likelihood the object is the desired object; and wherein the evaluation criteria is based on a probability-based prediction of onboard sensor performance and commit logic processing. 8. The method of claim 1, wherein determining the contribution includes generating a mission probability model of uncertainty from previous sensor scans, and determining a conditional probability of accomplishing the mission given the new possible route. 9. The method of claim 8, wherein the model includes estimated types and kinematics of objects in the vehicle's environment as well as the ability to project the current model, and its uncertainty, into a future time. 10. The method of claim 8, wherein accomplishing the mission includes searching, recognizing, and committing to a target in a region; and wherein the probability model includes representations of the target in the region. 11. The method of claim 1, wherein the vehicle is an airborne platform, and wherein the routes are flight paths for the airborne platform. 12. The method of claim 1, wherein the evaluation criteria is based on a model that characterizes new information gained from utilizing the on-board sensors and also information gained from previous sensor scans. 13. The method of claim 1, wherein at step (a) a route generator is re-initialized with a selected route that has a larger probability of mission accomplishment.

이 특허에 인용된 특허 (34)

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A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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