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 firstly divide the redundancy of the remote communication datagrams into inter-frame redundancy, mode redundancy and coding redundancy through protocol analysis, and the datagram preprocessing method, LZ77 algorithm and Huffman algorithm are adopted 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 combinatorial compression method. Finally, the experimental results show that the proposed method can effectively shorten the length of the datagram, thus reducing storage consumption and improving network transmission efficiency.
