Point-to-region wave height short-term prediction method and system for offshore construction early warning

Abstract

The present application relates to the field of marine engineering safety early warning and intelligent prediction, especially a point-to-area wave height short-term prediction method and system for offshore construction early warning, the present application takes the measured point historical mode wave height, the measured point historical reference supervision wave height and the future mode wave height as the input, through constructing the short-term prediction model based on the Transformer encoder, and introducing the joint loss function containing the absolute error term, the large value underestimation penalty term, the trend asymmetric term, the residual term and the peak time term, the automatic output of the future correction result of each measured point is realized; further, according to the mapping relationship between the measured point and the corresponding coverage area, the measured point correction result is extended to the whole target area, the corrected wave height field is formed, and the automatic determination of normal, attention, alert and shutdown and other levels is completed combined with the construction threshold, without the need for manual continuous interpretation, a complete closed loop from data acquisition, area analysis, prediction, area correction to grading early warning and result storage and pushing is formed.

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