郑国权,窦健,卢继哲,郄爽,叶方彬,胡浩星.基于冗余分析的用电信息采集系统数据压缩方法[J].电测与仪表,2022,59(5):70-77. Zheng Guoquan,Dou Jian,Lu Jizhe,Qie Shuang,Ye Fangbin,Hu Haoxing.Data compression method of electric energy data acquisition system based on redundancy analysis[J].Electrical Measurement & Instrumentation,2022,59(5):70-77.
基于冗余分析的用电信息采集系统数据压缩方法
Data compression method of electric energy data acquisition system based on redundancy analysis
In order to solve the communication and storage problems caused by high-frequency data reporting in the electric energy data acquisition system, we first divide the redundancy of the remote communication datagrams into inter-frame redundancy, mode redundancy and coding redundancy through protocol analysis, and use datagram preprocessing method, LZ77 algorithm and Huffman algorithm to eliminate these redundancies respectively; Then, according to the problem which these redundancies cannot be removed by a single algorithm simultaneously, we analyze their characteristics and relationships and propose a combination compression method. Finally， the experimental results show that the method can effectively shorten the length of the datagram, thus reducing storage consumption and improving network transmission efficiency.
