发明名称 |
Method for closed-loop controlling a laser processing operation and laser material processing head using the same |
摘要 |
The present invention relates to a method for closed-loop controlling a processing operation of a workpiece, comprising the steps of: (a) recording a pixel image at an initial time point of an interaction zone by means of a camera, wherein the workpiece is processed using an actuator having an initial actuator value; (b) converting the pixel image into a pixel vector; (c) representing the pixel vector by a sum of predetermined pixel mappings each multiplied by a corresponding feature value; (d) classifying the set of feature values on the basis of learned feature values into at least two classes of a group of classes comprising a first class of a too high actuator value, a second class of a sufficient actuator value and a third class of a too low actuator value at the initial time point; (e) performing a control step for adapting the actuator value by minimizing the error et between a quality indicator ye and a desired value; and (f) repeating the steps (a) to (e) for further time points to perform a closed-loop controlled processing operation. |
申请公布号 |
US9355441(B2) |
申请公布日期 |
2016.05.31 |
申请号 |
US201113807289 |
申请日期 |
2011.06.28 |
申请人 |
PRECITEC KG;PRECITEC ITM GMBH |
发明人 |
Wersborg Ingo Stork Genannt;Bautze Thibault |
分类号 |
G05B13/02;G06T7/00;B23K1/005;B23K26/03;B23K26/14;B23K26/20;B23K26/34;B23K28/02;G05B19/408;G06K9/62;B23K26/32 |
主分类号 |
G05B13/02 |
代理机构 |
Muncy, Geissler, Olds & Lowe, P.C. |
代理人 |
Muncy, Geissler, Olds & Lowe, P.C. |
主权项 |
1. Method for closed-loop controlling a processing operation of a workpiece, comprising the steps of:
(a) recording a pixel image at an initial time point of an interaction zone by means of a camera, wherein the workpiece is processed using an actuator having an initial actuator value; (b) converting the pixel image into a pixel vector; (c) representing the pixel vector by a sum of predetermined pixel mappings each multiplied by a corresponding feature value; (d) classifying the set of feature values on the basis of learned feature values into at least two classes of a group of classes comprising a first class of a too high actuator value, a second class of a sufficient actuator value and a third class of a too low actuator value at the initial time point; (e) performing a control step for adapting the actuator value by minimizing the error et between a quality indicator ye and a desired value; and (f) repeating the steps (a) to (e) for further time points to perform a closed-loop controlled processing operation. |
地址 |
Gaggenau-Bad Rotenfels DE |