摘要
以嵌入式Internet技术为基础,研究变电站内的智能电子设备(IED)如何实现嵌入式Internet接入,从而实现现场生产信息在广域范围内的共享。讨论了变电站IED嵌入式Internet的接入模式,详细阐述了实现IED嵌入式Internet接入的关键技术,提出采用“胖”客户机“瘦”服务器的系统体系结构满足硬件资源的限制,Web页面集成嵌入式JavaApplet解决数据动态更新问题,裁剪TCP/IP协议并利用HTTP1.1协议持续连接和缓存控制特性解决实时性问题。最后,对变电站内的IED嵌入式Internet接入后引起的网络安全问题及应采取的安全策略进行了探讨。
The interconnection of IEDs(Intelligent Electronic Devices) in substation is studied based on the embedded Internet technology to realize sharing for field operation information in wide areas. The interconnection mode is discussed and the key implementation technologies are des, cribed,such as adopting the architecture of thin server / fat client to satisfy the constraints of source in IED,integrating embedded Java Applet into Web pages to update dynamic information,cutting TCP / IP protocol and using persistent connection and cache control characteristics of HTTP1.1 to meet the real,time requirements. The network security after interconnection is discussed and some security strategies and measures are proposed.
出处
《电力自动化设备》
EI
CSCD
北大核心
2005年第7期17-20,共4页
Electric Power Automation Equipment
