Method for detecting an anomaly in an industrial machine and related industrial machine

A method for detecting an anomaly in an industrial machine, wherein the industrial machine comprises a member which moves according to a succession of cycles of movement having a phase, wherein the method comprises:

• at a determined value of the phase of each cycle of movement, acquiring a respective image of a portion of the industrial machine, to obtain a collection of images of the portion of industrial machine;
• comparing an image of the collection of images acquired in a given cycle of movement with one or more images of the collection of images acquired respectively in one or more cycles of movement prior to the given cycle of movement;
• and
• as a function of the comparing, determining the presence of an anomaly in the industrial machine.

An industrial machine comprises:

• a member movable according to a succession of cycles of movement, wherein the succession of cycles of movement has a phase,
• an image acquisition system structured for acquiring an image of a portion of the industrial machine;
• a phase detector structured for detecting in real time a value of the phase;
• and
• a processing unit connected to the image acquisition system and to the phase detector, wherein the processing unit is configured and programmed for:
• receiving from the phase detector the value of the phase,
• at a determined value of the phase of each cycle of movement, sending a control signal to the image acquisition system for acquiring a respective image of the portion of industrial machine;
• storing in memory the respective image acquired in each cycle of movement to obtain a collection of images;
• comparing an image of the collection of images acquired in a given cycle of movement with one or more images of the collection of images acquired respectively in one or more cycles of movement prior to the given cycle of movement;
• and
• as a function of the comparing, determining the presence of an anomaly in the industrial machine.