Evaluation of a condition of an automatic door drive belt

A method for evaluating a condition of a door drive belt (250) of an automatic door (200), wherein the automatic door (200) is operated by controlling a door motor (220) operatively coupled to a door leaf (110) over the door drive belt (250), the method, performed by a computing system comprises:

• receiving (410) data descriptive of a movement of the automatic door (200) in response to a reduction of a driving force of the door motor (220) at an extreme position of the automatic door (200) in its travel path,
• comparing (420) at least part of the data descriptive of the movement of the automatic door (200) to reference data, and
• setting (430), in accordance with a comparison between the at least part of the data descriptive of the movement of the automatic door (200) and the reference data, a detection result to express one of the following:
• i)]] the condition of the door drive belt (250) is proper, ii)]] the condition of the door drive belt (205) is improper.