Multi-mode fusion intelligent detection system for railway track overhead line system suspension monitoring

The invention belongs to the technical field of overhead line system detection, and particularly relates to a multi-modal fusion intelligent detection system for railway track overhead line system suspension monitoring, which is characterized by comprising a multi-modal data acquisition and processing unit, a data processing and analysis unit and an abnormal state judgment unit, the multi-modal data acquisition and processing unit is used for uniformly selecting a plurality of sampling points on the overhead line system suspension and constructing an initialized composite data matrix of the overhead line system suspension; the data processing and analyzing unit is used for performing nonlinear feature extraction and dimension reduction on the initialized composite data matrix to obtain a dimension-reduced feature matrix; and the abnormal state judgment unit is used for calculating an abnormal state index of overhead line system suspension according to the tension estimation result and the displacement functio