Patent attributes
A profile detection system is provided having first and second position sensors disposable adjacent an article wherein the first and second position sensors and the article are relatively movable. A laser sensor is disposed on a crane as a third position sensor. An additional sensor is configured to identify train components. A bar code reader, an optical character recognition reader or a radio frequency identification reader may selectively be used as the additional sensor. A programmable indication device is in communication with the first, second and third position sensors and the additional sensor. The programmable indication device develops an indication of a profile of the article responsive to the first and second position sensors.