CALIBRATING METHOD FOR SWINGING DETECTION DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a calibrating method for a swinging detection device for correctly detecting the swinging angle of a spreader even in the case having a heavy suspended cargo. SOLUTION: In a swinging detecting device for detecting a marker 11 on a spreader photographed by a camera 12 provided on a trolley 5 by an image processing device 14 to detect the swinging angle of the spreader 7, the center position S of the marker 11 is determined beforehand in a condition having no swinging of the spreader 7 in respective positions of the trolley 5 when the trolley 5 is moved along a boom 4 in a condition where a suspended cargo 6 such as a container is suspended on the spreader 7, to use the position S as calibration data for detecting the swinging angle of the spreader 7.