System and method for automatically guiding a gantry crane

Details System and method for automatically guiding a gantry crane System and method for automatically guiding a gantry crane

2006-04-25

2006-04-25

Brahan, Thomas J. (Department: 3654)

Traversing hoists

Overhead

Surface vehicle

C212S270000, C701S041000, C701S044000

Reexamination Certificate

active

07032763

ABSTRACT:
An automatic guidance system and method are provided for a gantry crane to permit accurate tracking along a path, including a curved path. The position of the crane is determined from two spaced apart GPS receivers fixed to the crane. A guidance controller determines a plurality of error measurements from respective front, center and rear points of the crane relative to a current tracking line, which is a line tangent to the path at a current position of crane. In an embodiment, the system includes a base station that can be used to transmit data to the crane to specify a particular destination location of the drive path, or to transmit data representing the drive path itself.

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