Internet/Intranet技术应用于SCADA/EMS系统中的探讨

在分析了目前国内SCADA/EMS系统的结构以及网络数据安全状况的基础上,结合现代计算机网络技术(P2P计算模型、三层结构技术等),提出在SCADA/EMS系统中采用Internet/Intranet技术的构想,并给出了新型SCADA系统的具体结构、通信模型,以及应采用的一些相关技术。在对两种SCADA系统成本效益分析后,得出新型系统具有良好的性价比。此外,为了提高原有设备的利用率,也提出在传统SCADA中增添网关设备,将其改造成基于Internet技术的SCADA系统的方法。

Applying Internet/Intranet technology to SCADA/EMS system

On the basis of analyzing the structure of domestic SCADA/EMS system and the safty state of network data at present,the paper puts forward the proposition of adopting the Internet/Intranet technique in SCADA/EMS system by considering the modern computer network technology(current 3-tier technology,P2P calculating model).SCADA/EMS system's concept based on the Internet/Intranet technique and a new structure of SCADA and communication model and some correlated technique which should be adopted are detailed.The new model has a better cost performance after the two kinds of SCADA system are analysed.In addition,to further improve the utilization ratio of the old equipment,a method to refit it into a SCADA system based on Internet technique by adding up gateway equipment on the traditional SCADA system is put forward.