Fork-Lift Truck And Method For Operating a Fork-Lift Truck

摘要

A fork-lift truck includes a load carrier, a first optical detector, an optical analysing unit, and a second optical detector. The analysing unit receives and analyses information from the second optical detector, wherein the first and second optical detector are movable together with the load carrier, and the first optical detector is positioned in relation to the load carrier, such that a first field of view includes at least a part of the load carrier and an extension of the load carrier. The second optical detector is positioned, such that a second field of view includes a predetermined volume above the load carrier The position and orientation of the second detector is calibrated in relation to a predetermined position on the fork-lift truck, in case one or more objects are positioned in the predetermined volume, at least one three-dimensional relative position can be determined.

主权项

1. A fork-lift truck comprising:
a load carrier; a first optical detector having a first field of view; at least one optical analysing unit receiving and analyzing information from the first optical detector; and a second optical detector having a second field of view, wherein said at least one optical analysing unit receiving and analyzing information from the second optical detector, wherein said first and second optical detector are movable together with the load carrier and said first optical detector is positioned at a first position in relation to the load carrier, such that the first field of view, if the load carrier is empty, includes at least a part of said load carrier and an extension of the load carrier so that said first optical detector detects one or more potential objects positioned within a predetermined distance from the load carrier in the direction of the extension of the load carrier, wherein said second optical detector is positioned at a second position, such that the second field of view includes, if the load carrier is loaded, a predetermined volume above the load so that said second optical detector detects potential objects positioned within said predetermined volume, and wherein the position and orientation of said second detector is calibrated in relation to a predetermined position on said fork-lift truck, such that, in case one or more objects are positioned in the predetermined volume, at least one three-dimensional relative position can be determined by said at least one optical analysing unit between, on one side, said load and/or load carrier, and, on another side, said one or more objects positioned in the predetermined volume.