High-temperature early warning method and system for pulverized coal gasification burner

The invention relates to the technical field of high-temperature early warning, in particular to a high-temperature early warning method and system for a pulverized coal gasification burner, and the method comprises the steps: obtaining a to-be-analyzed data segment in a collected temperature data sequence, determining the similarity of data points in a preset local range of any data point in the to-be-analyzed data segment before and after interpolation, taking the reciprocal of the number of the data points in the local range as a compensation factor of any data point, and calculating the credibility of any data point, a preset number of data points are randomly selected from a to-be-analyzed data segment to form a combined sequence, all the combined sequences are acquired, the optimization degree of any combined sequence is calculated, and the change trend of the combined sequence with the maximum optimization degree is used as the historical trend when the HTFE algorithm predicts data so as to predict the