网络代理在新型远动装置中的应用研究

Application and research of network proxy in new type RTU

针对远动系统在利用IEC60870-5-104规约与多级调度主站通信的过程中存在的多个应用程序需要绑定相同IP和端口号的问题,提出了一种利用网络代理技术的解决方案。在远动系统中建立一个网络代理服务程序,作为远动系统中多个应用程序的网络代理机构,该程序分别与各级主站和各个应用程序建立TCP/IP连接,根据配置的规则建立主站IP与应用程序地址间的映射,在主站与应用程序间转发数据。实验结果表明,该方案能够达到预期的目标,也可以解决调度站在双平面建设的需求。

Aiming at the problems that applications need to bind the same IP and port in data communication with multistage scheduling centers, a solution using the network proxy is proposed. A network proxy service program acting as a communication gateway in RTU system is established. The proxy service program establishs TCP/IP connection with applications and scheduling centers, and creates address mapping between applications and scheduling centers depending on the configuration of the rules, and forwards data between the two. The application experience on China Southern Power Grid shows that the method can reach the expected target, and meet the demand of construction of the double plane of scheduling center.