面向输电线路监测的无线网关键技术研究  

Research on the Key Technologies of WLAN in Power Transmission Lines Monitoring

作　　者：陈晰[1] 吴帆[2] 范文浩[2] 

机构地区：[1]国网信息通信有限公司,北京100761 [2]北京邮电大学,北京100876

出　　处：《电力系统通信》2012年第3期28-31,共4页Telecommunications for Electric Power System

摘　　要：输电线路监测是电力安全生产过程的重点工作之一。通过在输电线路在线监测系统中使用无线局域网技术,可以有效减少租用公用数据网的通信费用,增加通信带宽,降低数据安全风险。文章探讨了面向架空线路监测的无线网技术方案,提出了网络节点的结构设计,并在分析IEEE 802.11中DCF 4次握手机制的基础上,提出了适用于输电线路监测系统的DCF参数修改方案。仿真结果表明,修改后的参数方案能够减少输电线路监测系统远距离通信带来的问题,保证网络正常运行。Transmission line monitoring is critical work for power grid companies. By applying wireless LAN technology on transmission line monitoring system, we can effectively reduce the rental cost of GPRS and CDMA network, increase communication bandwidth, and reduce risks of information leakage. In this paper, we proposed a transmission monitoring system based on WLAN, and provided node structure of the system. Based on the analysis of IEEE 802.11 four-way handshake protocol, we proposed the amendment of DCF parameters which is suitable for power transmission line monitoring. The ns-2 simulation results showed that the amendment of DCF parameters can be helpful in solving the remote communication problems of transmission line monitoring system, and can ensure the normal operation of networks.

关 键 词：输电线路监测 无线局域网 IEEE 802.11 DCF 

分 类 号：TN92[电子电信—通信与信息系统]