基于嵌入式平台的电能信息采集系统研究

Research on power information acquisition system based on embedded platform

针对目前电能信息采集系统存在的通信数据量大、通信费用高的问题,设计了一种基于uC/OS嵌入式实时操作系统的电能信息采集系统,该系统包括智能电表、电能信息采集终端、上位机软件和主站数据中心。系统根据上位机设置的参数下行采集电表中数据,数据在采集终端经过数据压缩处理后,通过远程通信技术上行传输至主站,便于工作人员监测和管理电能数据。文中结合Lempel-Ziv-Oberhumer无损压缩技术和游程编码技术对数据压缩方案进行改进,通过数据压缩对比实验,验证数据压缩方案的可行性。实验结果表明,系统采用的数据压缩技术有效提高了数据传输的通信效率,验证了系统的实用性和有效性。

Aiming at the problems of a large amount of communication data and high communication costs existing in the current power information acquisition system,a power information acquisition system based on a uC/OS embedded real-time operating system is designed.The system includes a smart electricity meter,power information acquisition terminal,host computer software,and master station data center.According to the parameters set by the upper computer,the system collects the data in the electricity meter downlink.After data compression processing in the acquisition terminal,the data is transmitted to the master station through remote communication technology,which is convenient for the staff to monitor and manage the power data.In this paper,the Lempel-Ziv-Oberhumer lossless compression technology and run-length coding technology are combined to improve the data compression scheme,and the feasibility of the data compression scheme is verified by the comparison experiment of data compression.The experimental results show that the data compression technology used in the system effectively improves the communication efficiency of data transmission,and verifies the practicability and effectiveness of the system.