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

Claim 0:
1. A system for inspecting direct part marking (DPM) symbols, comprising:
an imaging device configured to capture images of DPM symbols on parts being processed by equipment;
a non-transitory memory configured to store a profile inclusive of acceptable grades for each of a plurality of individual metrics of the DPM symbols; and
a processing unit in communication with said imaging device and said non-transitory memory, and configured to:
store, in the non-transitory memory, official metrics measured in a controlled environment for a “golden” sample;
receive, from the imaging device, a captured image of a DPM symbol on a part;
image process the captured image to perform measurements of the DPM symbol of the “golden” sample and determine a grade of each of the individual metrics of the imaged DPM symbol based on calculate statistical distributions of the individual metrics from an uncontrolled environment;
for each of the metrics, compare the official individual metrics from the controlled environment and the statistical distributions of the individual metrics from the uncontrolled environment to determine whether a determined grade of the corresponding metric of the imaged DPM symbol is below the acceptable grade of the corresponding metric; and
identify the individual metrics that are lower in the uncontrolled environment, and in response to determining that a grade of a corresponding metric the imaged DPM symbol is below an acceptable grade for the corresponding metric, communicate a first signal to the equipment for the equipment to perform a first physical action in processing the part, otherwise, communicate a second signal to the equipment for the equipment to perform a second physical action in processing the part.