Fan state prediction method and device

The invention discloses a fan state prediction method and device. The fan state prediction method comprises the steps that S11, sample data are obtained, and the sample data comprise overall-level data, equipment-level data and component-level data; s12, establishing a least square support vector machine model by taking a to-be-predicted quantity in the sample data as an output vector and taking the rest quantities as input vectors; wherein a kernel function of the least square support vector machine model is a radial basis kernel function; step S13, determining a global optimization initial value of a hyper-parameter in the radial basis kernel function by using a grid search method; and step S14, taking the global optimization initial value as an initial longhorn beetle centroid, and determining a global optimal value of the hyper-parameter by using a longhorn beetle algorithm. According to the method, the overall operation state of the fan can be predicted, and the prediction accuracy is improved. 本发明公开了一种风