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

作　　者：郑国权 窦健 卢继哲 郄爽 叶方彬 胡浩星 Zheng Guoquan;Dou Jian;Lu Jizhe;Qie Shuang;Ye Fangbin;Hu Haoxing(China Electric Power Research Institute Co.,Ltd.,Beijing 100192,China;Electric Power Research Institute of State Grid Zhejiang Electric Power Co.,Ltd.,Hangzhou 310006,China;School of Microelectronics and Communication Engineering,Chongqing University,Chongqing 400044,China)

机构地区：[1]中国电力科学研究院有限公司,北京100192 [2]国网浙江省电力有限公司电力科学研究院,杭州310006 [3]重庆大学微电子与通信工程学院,重庆400044

出　　处：《电测与仪表》2022年第5期70-77,共8页Electrical Measurement & Instrumentation

基　　金：国家电网公司总部科技项目(521101180017)。

摘　　要：为解决用电信息采集系统中数据高频上报引起的通信及存储问题,通过协议分析将远程通信报文的冗余性分为了帧间冗余、模式冗余及编码冗余,并分别采用报文预处理方法、LZ77算法与Huffman算法压缩其冗余;针对单种算法无法同时对报文的三种冗余进行压缩的问题,通过对三种冗余各自的特性及相互间关系的分析,提出了一种组合压缩的方式,实验结果表明,该方法可以有效地缩短远程通信报文的长度,从而减少存储消耗、提高网络的传输效率。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.

关 键 词：用电信息采集 远程通信报文 冗余性分析 数据压缩 组合压缩 

分 类 号：TM933[电气工程—电力电子与电力传动]