The invention belongs to the field of intelligent electric meter fault detection, and discloses an intelligent electric meter fault diagnosis method based on distributed
data set compression. The method comprises the following steps: firstly, uniformly collecting multi-site
ammeter fault data and generating a
data set with a
label, then averagely distributing the data to each
client, extracting features and packaging information through local model training, and meanwhile, selecting representative samples by using a
gain maximization strategy to maintain distribution coverage and intra-class diversity. And then adopting batch normalized trajectory matching, multi-clipping and confrontation
distillation, mining difficult samples and reducing model differences by using soft labels to generate high-value compressed data. And finally, a fault diagnosis model is retrained on the integrated data, so that the storage and transmission cost is remarkably reduced, the detection precision is improved, and an efficient scheme is provided for large-scale
ammeter operation and maintenance. The method gives consideration to both safety and expandability, has popularization value, and is wide in prospect and remarkable in benefit.