AUTOMATED ACOUSTIC ANOMALY DETECTION FEATURE DEPLOYED ON A PROGRAMMABLE LOGIC CONTROLLER

A real-time computer system for automated acoustic anomaly detection in a programmable logic controller (PLC) is disclosed, the computer system being deployed onto a backplane of the PLC. The computer system includes at least one processor with a real-time operating system and a memory having algorithmic modules stored thereon executable by the processor. The modules include a digital signal processing module configured to apply a windowing function to the sound signal data captured by a sensor, the sound signal data representative of sound emitted by an energized work product under quality inspection. The modules further include a feature extraction component configured to extract acoustic features from each sound window, and an anomaly detector module configured to operate a machine learning-based model to execute acoustic anomaly detection according to results of a classification operation on the acoustic features.