Based on Embedded Zerotree Wavelet Coding Data Compression Algorithm Research of NC Machine Tool Control System

the core of intelligent manufacturing is Cyber-Physical system. In order to establish high frequency sampling of Cyber-Physical system, massive data is needed. It is necessary to study the efficient transmission technology of real-time data. Data compression is through the omitted part is not necessary or redundant, transfer and storage in finite strip width, and storage space for more information of a technical means. Embedded Wavelet coding (Embedded Zero tree Wavelet, EZW) is based on Wavelet transform multi-resolution analysis technology, extract the Embedded Zero tree, and variable length of quantization and coding compression, transmission and decompression algorithm. This paper mainly studies the numerical control machine tool electric control instruction domain representative of the current loop of data in the data for one dimensional data was designed based on the EZW algorithm binary tree structure of zero tree and Huffman encoding to achieve further compression. Verification experiment and application results showed that, the algorithm on the basis of the guarantee accuracy has good compression ratio and efficiency.