| 摘要 |
The present invention relates to an optical/visual sensing and controlling system for accurate positioning of a lifting device, especially a hoisting rig or/and a crane for handling of containers within a container stack yard. The invention provides a position sensing system for the hoisting rig of a loading and unloading crane, which may be integrated with further controls within the machine, but is also possible to install as a separate unit in an already present fixed or movable crane, to identify the position of the hoisting rig in relation to the locking hole(s) in a container to be hoisted. The invention further includes a set of corresponding optical sensors arranged at the front and the rear of the machine to facilitate that the crane maintains a track and course without introducing skewing or position offsets in relation to colored lines painted on the surface of the container stack yard. |
