Method and device for compressing and storing time sequence data of industrial equipment

The invention relates to an industrial equipment time sequence data compression and storage method and device. The method comprises the following steps: acquiring time sequence data collected at the current time; the deviation between the time sequence data and time sequence data recorded last time is calculated; when the deviation exceeds a dead zone range, recording the time sequence data; obtaining time sequence data recorded for multiple times, and counting the occurrence frequency of each characteristic value in the time sequence data recorded for multiple times; calculating the information entropy of each characteristic value according to the statistical frequency; according to the weight of the information entropy of each feature value in the total information entropy, obtaining the weight of each feature value; wherein the total information entropy is the sum of the information entropies of all the feature values; and by taking each feature value as a symbol, taking the weight of the feature value as