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

Claim 9:
10. A computer-implemented method for inspecting direct part marking (DPM) symbols, comprising:
storing official metrics measured in a controlled environment for a “golden” sample;
performing measurements of the DPM symbol of the “golden” sample;
receiving an image of a DPM symbol on a part;
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 individual metrics from the uncontrolled environment and determining a grade of each of a plurality of individual metrics of the imaged DPM symbol;
identifying individual metrics that have lower grades in the uncontrolled environment than in the controlled environment;
for each of the metrics, determining whether a determined grade of the corresponding metric of the imaged DPM symbol is below the acceptable grade from a profile of the corresponding metric; and
in response to determining that a determined grade of the corresponding metric is below the acceptable grade of that corresponding 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.