US Patent 11158084 Determination of relative position of an apparatus

A workcell that is configured to interact with a device having a plurality of target items and a first memory comprising information about 3D positions of the plurality of target items defined in a first coordinate system of the device. The workcell has a camera module and a processor. The camera module is configured to provide information about a first position of a target item on a first sensor and a second position of the same target item on the second sensor. The processor is configured to determine a position and an orientation of the device within the coordinate system of the workcell.