GSM无线数据传输在无功补偿中的应用

针对无功补偿中传统通讯方式的不足 ,提出了使用GSM模块TC35通过GSM网络进行无线数据传输。该方法以AT89c5 2单片机作为下位机的通讯控制器 ,通过扩展的串行口同TC35模块相连 ,使用AT对TC35进行控制 ,使用短消息实现与PC上位机的无线通讯 ;PC机采用多串口扩展技术来实现系统扩容并减少通讯冲突 ,软件上采用多线程技术保证数据处理的实时性。试验结果表明该系统数据通讯方法可靠而稳定 ,具有可扩展性强、实时性高的特点 ,有效地降低了设备维护工作量 ,实现了真正意义上的电力系统远程监控

Application of GSM Wireless Communication in Reactive Power Compensation

The TC35 modem and its application in Reactive Power Compensation is presented in this paper. The AT89C52 single-chip connects the TC35 with the extended UART port ,controls the TC35 AT command with AT commands and uses SMS(short messaging service) to communicate with PC; the PC uses multi\|UART expanding technology to reduce the communicate collision and enlarge the number of termination.Multithreading is applied in software to ensure the real-time performance. Experiment results showed that the system possesses the advantages of high real-time standard, high expansibility. It reduces the workload of equipment maintenance effectively and realizes the remote supervision and control in power system.