CFSPT: A lightweight cross-machine model for compound fault diagnosis of machine-level motors

The inevitable multi-component assembly errors and complex data collection sites lead to coupling fault information and global distribution differences among individuals, making fault diagnosis of machine-level motors more challenging. This article proposes a lightweight cross-machine model, namely, coarse-fine signal pruning transformer (CFSPT), specially for the compound fault diagnosis. Specifically, the unidirectional multi-scale …