HOOK POSITION DETECTING DEVICE OF MOVABLE CRANE

摘要

PROBLEM TO BE SOLVED: To provide a high-accuracy hook position detecting device of a movable crane. SOLUTION: A GPS device 21, a laser ranging device 22 or a laser ranging tracking device, which is capable of detecting the position of an object with high accuracy, is used to detect the three-dimensional position of a hook 6 with high accuracy. COPYRIGHT: (C)2006,JPO&NCIPI