Patent ID: 11907793
Assignee: DATALOGIC IP TECH, S.R.L.
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 16:
17. A computer-implemented method of producing a metric quality grade profile for use during inspection of a direct part marking (DPM) symbol marked on parts, comprising:
storing official metrics measured in a controlled environment for a “golden” sample;
performing measurements of the DPM symbol of the “golden” sample;
performing measurements of the metrics of the “golden” sample in an uncontrolled environment;
calculating statistical distributions of metrics from the uncontrolled environment;
comparing the official metrics from the controlled environment and statistical distributions of metrics from the uncontrolled environment;
setting an acceptable grade for each of the individual metrics that have lower grades in the uncontrolled environment than in the controlled environment;
configuring an imaging system to perform inspection of direct part marking symbols by storing, in a non-transitory memory on the imaging system, the acceptable grades for the individual metrics as a profile of the DPM symbol;
during inspection of an imaged DPM symbol on a part, accessing the acceptable grades for the individual metrics stored in the non-transitory memory;
determining a grade of each of a plurality of individual metrics of the imaged DPM symbol;
determining whether any of the grades of the individual metrics of the imaged DPM symbol is below a stored acceptable grade from the respective individual metrics; and
in response to determining that a determined grade of an individual metric is below an acceptable grade of that metric, communicating a first signal to equipment for the equipment to perform a first physical action in processing the part, otherwise, communicating a second signal to the equipment for the equipment to perform a second physical action in processing the part.