US 12,462,376 B2
Reference recording creation for empty workpiece carriers
Willi Poenitz, Leonberg (DE); Marc Teschner, Stuttgart (DE); and Korbinian Weiss, Korntal (DE)
Assigned to TRUMPF WERKZEUGMASCHINEN SE+ CO. KG, Ditzingen (DE)
Filed by TRUMPF Werkzeugmaschinen SE + Co. KG, Ditzingen (DE)
Filed on May 24, 2023, as Appl. No. 18/322,608.
Application 18/322,608 is a continuation of application No. PCT/EP2021/083619, filed on Nov. 30, 2021.
Claims priority of application No. 10 2020 215 227.6 (DE), filed on Dec. 2, 2020.
Prior Publication US 2023/0298161 A1, Sep. 21, 2023
Int. Cl. G06T 7/00 (2017.01); G06T 7/12 (2017.01); G06T 7/194 (2017.01); G06V 10/82 (2022.01)
CPC G06T 7/001 (2013.01) [G06T 7/12 (2017.01); G06T 7/194 (2017.01); G06V 10/82 (2022.01); G06T 2207/30136 (2013.01); G06T 2207/30164 (2013.01); G06V 2201/06 (2022.01)] 13 Claims
OG exemplary drawing
 
1. A method for creating a reference recording of an unloaded state of a workpiece carrier, the method comprising:
A) creating a recording of the workpiece carrier with a camera;
B) determining, using a computer, a loading state of the workpiece carrier by:
evaluating the recording, by executing an algorithm on the computer, to determine whether an object is present on the workpiece carrier; and
upon determining that the object is present, determining, by executing the algorithm on the computer, whether a dimension of the object is narrower than a predefined size or a position of the object is closer to an edge of the workpiece carrier than a predefined distance, determining that the object is not on the workpiece carrier; and
C) upon determining that the workpiece carrier is unloaded based on determining that no object is present on the workpiece carrier, storing the recording in a memory as a reference recording for a next determination of the loading state of the workpiece carrier.