Patent ID: 9718650
Date: 2017-08-01
CPC Classifications: B66C

Claim:
1. A control device using image tracking technology for controlling an overhead crane system comprising a movable drive unit and a cable directly connecting the drive unit and a hoisted load, wherein the control device comprises: a plurality of image capturers circumferentially disposed on the overhead crane system at a position on a horizontal plane, each continuously capturing images of a hoisted load within an operating space from different perspectives; an image processor receiving images from the image capturers and calculating 3D coordinate data, and that determines if load swing occurs according to the 3D coordinate data, and converts a movement amount of the load swing into a parameter to generate a feedback signal; and a crane controller, electrically connected to the image processor and a drive unit and generating a drive signal according to the feedback signal, which is sent to the drive unit to modify the speed of the drive unit to suppress load swing.