(57) A method (600) for monitoring cap application in a filling machine (300) is presented.
The filling machine (300) comprises a cap holder (100) comprising a peripheral element
(102) for encircling a cap (106), gripping elements (104) connected to the peripheral
element (102) and arranged for preventing movement of the cap (106) with respect to
the peripheral element (102) during rotation of the peripheral element (102) around
a center axis (A), a sensor arrangement (110) attached to the peripheral element (102),
and a communication module (112) linked to the peripheral element (102), communicatively
connected to the sensor arrangement (110) and arranged to transmit sensor data to
the data processing apparatus (312), said method comprising receiving (602) the sensor
data (314) captured by the sensor arrangement (110), comparing (604) the sensor data
(314) with sensor reference data (320) held in a reference database (318) communicatively
connected to the data processing apparatus (312), in case of discrepancy (606) between
the sensor data (314) and the sensor reference data (320), transmitting (608) a check
notification (322) from the data processing apparatus (312) to a control system (324).
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