Elevator Performance Evaluation Based on the Analysis of the Running Sound

The sound signal during the operation of an elevator is related to the performance of which, so the current performance of an elevator can be obtained through the analysis of the sound signal. This paper proposes a performance evaluation method by the analysis of the sound signal for an elevator. The sound acquisition method for elevators is designed, and the sound signals of normal elevators and abnormal ones are collected separately. According to the operation of the door and the car, the sound signals are processed respectively to extract the features. Combined with the Grey Relational Analysis and Fuzzy Comprehensive Appraisal, a performance evaluation method based on the features of the elevator sound is constructed for elevators. Finally, the experimental verification is carried out. The results show that the evaluation error of the method is small compared with the actual situation, so the method can be used to evaluate the performance of elevators.