Hardware fitting detection network training method and device and hardware fitting identification method and device

The invention discloses a hardware fitting detection network training method and device and a hardware fitting identification method and device. The hardware fitting detection network comprises a region generation sub-network and N identification sub-networks. The training method of the hardware fitting detection network comprises the steps of obtaining an initial training set; a random number generated by the region generation sub-network is utilized, N target region images are segmented from the training image in the initial training set according to the random number and N preset sizes, and N is a positive integer; respectively inputting the N target area images into N identification sub-networks in a one-to-one correspondence manner for hardware identification, and obtaining a hardware identification result; and constructing a loss function according to the hardware identification result and the corresponding real label, and training the regional generation sub-network and the identification sub-network a