2 results about "Multi scale entropy" patented technology

This invention provides a reservoir dam safety monitoring system, the core mechanism of which includes: using a pole-symmetric mode decomposition algorithm to perform multi-scale decomposition on the dam structure response time series data to obtain several intrinsic mode functions; adaptively filtering each intrinsic mode function through permutation entropy; performing multi-scale grouping and weighted reconstruction of effective structural feature modes through dispersion entropy to obtain multiple sets of reconstructed sequences at different scales; constructing a multi-scale entropy feature vector corresponding to the dam structure response; coupling and analyzing the entropy feature sequence obtained by the same processing of the running command time series data with the multi-scale entropy feature vector to output the dam safety state coefficient; performing target detection, tracking, and behavioral risk analysis on the panoramic video stream data of the dam area to output the personnel behavioral risk coefficient; and performing a fusion risk assessment based on the dam safety state coefficient and the personnel behavioral risk coefficient to calculate the comprehensive risk level and trigger the corresponding level of prevention and control early warning.