Method and device for optimizing an loc watchdog (loss of cut watchdog) for a laser cutting machine

A method for optimizing an LOC watchdog (Loss of Cut Watchdog) for a laser cutting machine, the method comprising steps of:

• reading-in of first optical signals during a cutting process;
• evaluating the first optical signals with the LOC watchdog, which is configured to carry out a detection method in order to estimate a probability of whether a loss of cut, in a form of incompletely cut workpieces, is occurring or has occurred in a cutting process and to provide this estimate as an intermediate result;
• wherein
• if the LOC watchdog has estimated an occurrence of a loss of cut in the intermediate result as probable:
• interrupting the cutting process and issuing a re-cutting command in order to carry out a re-cutting process;
• reading-in of second optical signals during the re-cutting process;
• applying an analysis method to the first and second optical signals in order to determine whether the intermediate result of the LOC watchdog is a true positive or a false positive intermediate result
• optimizing the detection method of the LOC watchdog in response to a result of the analysis method, wherein the analysis method is configured as a machine learning method and is configured to improve the detection method of the LOC watchdog and to retrain the detection method.