Grating array building construction site perimeter security intrusion identification method

The invention relates to a grating array building construction site perimeter security intrusion identification method. The method comprises the following steps: denoising first original vibration data; determining the number of effective intrinsic mode function components according to the correlation coefficient; determining a plurality of vibration characteristic values of the first original vibration data according to the number and the information entropy; and inputting the feature vector into a pre-trained neural network model to carry out identification and classification. According to the method, the second original vibration data is decomposed to obtain a plurality of effective intrinsic mode function (IMF) components; and determining a plurality of vibration characteristic values of the first original vibration data according to the number of effective intrinsic mode function IMF components and the information entropy. And determining the number of effective IMF components according to the correlatio