Abstract: A computer-implemented method for training a machine learning model to detect installation errors in an elevator, in particular an elevator door. The machine learning model being a combination of a Set Function model and a Fourier-Transform model. The method including arranging a plurality of sensors at the elevator and each sensor being configured to detect a physical parameter. The method also includes detecting values of the physical parameters by the sensors so as to obtain a dataset comprising at least one time series and obtaining a first input layer by extracting features from the dataset. The method also includes obtaining a second input layer by extracting features from the dataset, feeding the Set Function model with the first input layer, and feeding the Fourier-Transform model with the second input layer.

Abstract: A maintenance method of an electromechanical device comprises the steps of: —making available to a control unit of the electromechanical device data communication means based on a wireless communication protocol; —providing an operator a portable electronic device suitable to implement augmented reality and having a database in which is stored a list of maintenance operations that can be performed on the electromechanical device, —activating data communication between the electronic control unit and the portable electronic device and transferring from the first to the second the status signals and/or possible alarm signals; —in the presence of at least one alarm signal, correlating said alarm signal with at least one maintenance operation and communicating to the operator, thanks to augmented reality, the alarm signal and the maintenance operations related to said alarm signal.

Abstract: A maintenance method of an electromechanical device comprises the steps of: making available to a control unit of the electromechanical device data communication means based on a wireless communication protocol; providing an operator a portable electronic device suitable to implement augmented reality and having a database in which is stored a list of maintenance operations that can be performed on the electromechanical device, activating data communication between the electronic control unit and the portable electronic device and transferring from the first to the second the status signals and/or possible alarm signals; in the presence of at least one alarm signal, correlating said alarm signal with at least one maintenance operation and communicating to the operator, thanks to augmented reality, the alarm signal and the maintenance operations related to said alarm signal.