3G虚拟专用网络在城镇燃气SCADA中的应用

SCADA系统作为当前最有效的远程采集和监控系统,在城镇燃气行业中有着广泛的应用。随着通信技术的发展,3G通信在越来越多的场合发挥出重要的作用。通过讨论燃气SCADA的实际应用情况,介绍了3G通信标准和VPN技术原理,针对复杂环境下终端场站与数据（调度）中心的通信问题,提出了基于3G网络平台,通过虚拟专用网络（VPN）技术实现SCADA系统虚拟专用监控网络的组网方式,解决视频等数据的传输问题。采用此解决方案的燃气SCADA在实际应用中运行良好,具有广泛的应用价值。

3G virtual private network in the town of the application of the gas SCADA

As the most effective system for remote data acquisition and monitoring,SCADA is widely used in city gas field.With the development of communications technology,3G plays an important role in more and more fields.Through discussing the practical application of city gas SCADA,3G criterion and VPN principle are introduced.In view of communications between data center and terminal stations,the visual private network based 3G is proposed,and SCADA VPN is given as a kind of solution to video transmission.City gas SCADA runs well based on this kind of solution,which has very high application value.