Substation alarm information processing method based on decision trees

The invention relates to a substation alarm information processing method based on decision trees. The method is characterized by including the following steps of (1) obtaining time sequence alarm information, (2) filtering an invalid alarm and an empty alarm in substation alarms, (3) relating and processing the alarm information, and (4) classifying the decision trees on the basis of the built alarm information to achieve classification of the alarm information. The method is based on the retrieval mode according to the time sequence of a historical database, similar signals are queried through the time sequence, loose-coupling incidence relation is built, a process similar to a decision tree reasoning process is provided, and a reasoning condition is formed. Compared with the mode that in the prior art, manually input reasoning conditions are adopted, the decision tree reasoning method generated according to the historical database has good superiority, and the longer system operation time is, the more accurate a reasoning theory is.