Richard L Pierce

US Patent:

53595424, Oct 25, 1994

Filed:

Dec 20, 1991

Appl. No.:

7/811523

Inventors:

Max C. Pahmeier - Renton WA
Richard T. Pierce - Monroe WA

Assignee:

The Boeing Company - Seattle WA

International Classification:

G01B 1124
G06F 1550

US Classification:

364461

Abstract:

A system for determining the position of an airplane in a hangar and for limiting the motion of a plurality of gantry cranes around the airplane, the system including a plurality of movable scanners which ascertain locations of a plurality of collinear points along the leading edges of the wings of the airplane, including a processor system for determining a point of intersection of lines through the collinear points, the point of intersection and lines having a known positional relationship with the other portions of the airplane from which the processor system also determines the locations of other portions of the airplane, the processor system determining limits on the cranes' motion relative to the airplane.