Method for identifying surface defects of captive balloon body

The invention discloses a captive balloon ball surface defect identification method, and belongs to the technical field of captive balloon ball detection, and the method comprises the steps: arranging a strain gauge sensor to collect the surface stress-strain data of a captive balloon ball, and carrying out the noise reduction and smoothing of an original signal; performing short-time Fourier transform on the original signal, and drawing a time-frequency diagram; taking the time-frequency graph as an image sample signal to train a convolutional neural network; and collecting surface stress-strain data of the captive balloon on line in real time, performing corresponding data processing, and inputting the data into the trained convolutional neural network model. According to the method, the types of the surface defects of the captive balloon body can be accurately recognized in real time, recognition and diagnosis of the surface defects of the captive balloon body are achieved, it is guaranteed that the health