发明名称 |
Hazard detection for flight plans and the like |
摘要 |
A flight plan is modeled by a trajectory with a set of segments having finite lateral and altitude extents between nominal way points. A terrain database stores hierarchical patches with maximum and minimum altitudes and pointers or altitudes for subpatches. Linear-programming inequality constraints match segments with patches. A search finds any terrain locations that impinge upon the trajectory tube, indicating an error condition for the plan. Moving hazards are modeled with segmented trajectories. Conflict with a moving hazard occurs when moving bubbles within both of the trajectories overlap in both space and time. |
申请公布号 |
AU2723401(A) |
申请公布日期 |
2001.04.24 |
申请号 |
AU20010027234 |
申请日期 |
2000.08.11 |
申请人 |
ALLIED-SIGNAL INC. |
发明人 |
STEPHEN G. PRATT;GARY L. HARTMANN |
分类号 |
B64D45/00;G01C21/00;G08G5/04 |
主分类号 |
B64D45/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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