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电力远程监测管理系统由于各种实际原因而在通信信道中存在干扰,引起数据传输错误。介绍在该系统中引入基于汉明检错码的差错控制方法,实现前向纠错、偶校验和自动请求重发等功能,有效提高通信准确率。同时系统主站软件的设计结合了VB和LabVIEW两种开发工具,不仅实现了主站软件的模块化设计,还能将数据通过虚拟仪器技术进行实时图形化显示。
Power remote monitoring and management system due to a variety of practical reasons in the communication channel interference, causing data transmission errors. This paper introduces the error control method based on Hamming error detection code introduced in this system to realize the functions of forward error correction, even parity and automatic request retransmission, which can effectively improve the communication accuracy. At the same time, the design of the system master station combines the development tools VB and LabVIEW, which not only realizes the modular design of the master station software, but also realizes the real-time graphical display of the data through the virtual instrument technology.