A distributed strain micro-crack detection system and method based on stacked autoencoders
A stacked autoencoder and distributed strain technology, applied in the field of pattern recognition, can solve problems such as unmeasured and easy to miss cracks, and achieve improved detection results, high robustness, and remarkable results
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[0051] Below in conjunction with accompanying drawing, the present invention is described in further detail:
[0052] see Figure 1 to Figure 5 , a distributed strain crack detection system based on stacked autoencoders, including a strain sequence acquisition module; a strain sequence preprocessing module; a feature self-learning and characterization module based on stacked autoencoders; a Softmax classification recognition module (the specific process is as follows figure 1 shown).
[0053] The strain sequence collection module is used to collect the distributed strain of the structure, and the collected distributed strain of the structure is a one-dimensional sequence;
[0054] The strain sequence preprocessing module includes: a z-score normalization module and a sliding window module, and the z-score normalization module normalizes the strain sequence to data with 0 mean and 1 standard deviation. The sliding window module intercepts a set of strain subsequences of lengt...
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