Differential data compression method, related device and storage medium

The invention provides a differential data compression method, a related device and a storage medium, and relates to the technical field of data compression. According to the method, original waveform data is divided into a plurality of waveform data segments (the minimum compression bit numbers of two adjacent waveform data segments are different), and for each waveform data segment, the corresponding optimal compression bit number and the optimal compression length are calculated; according to the method, the original waveform data is compressed according to the optimal compression bit number and the optimal compression length of each waveform data segment, that is to say, only one compression bit number and one compression length are not used when the original waveform data is compressed, but the compression bit number and the compression length of each waveform data segment during compression are optimal; therefore, the compression rate of the data can be effectively improved, lossless compression can be