Compression storage method and system for steady-state recording data

Abstract

The invention relates to the technical field of power systems, and provides a compression storage method and system for steady-state recording data, and the method comprises the steps: decomposing the input steady-state recording data according to a preset decomposition range, and obtaining a plurality of to-be-stored cycle data; determining a cycle waveform dictionary based on the Hash index; the cycle waveform dictionary comprises a plurality of cycle samples, waveform repetition frequencies and waveform numbers; searching a cycle waveform dictionary according to the to-be-stored cycle data; under the condition that the to-be-stored cycle data is matched with the cycle waveform dictionary, storing the to-be-stored cycle data according to a preset compression format; the preset compression format comprises a wave recording frequency and a wave recording number; the recording number is the same as the waveform number corresponding to the matched cyclic wave sample. According to the method, lossless compression of the input steady-state recording data can be realized, the compression rate is relatively high, and the storage space is greatly saved.

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