提出了一种基于多天线无线局域网的变电站地线监测系统的设计与实现方法。介绍了系统结构、软件和硬件构成,以及所采用的多天线通信的原理。其优良的结构保证了电磁干扰环境及条件下系统的稳定和可靠性,完全适用于电力系统场合的需要。 关键词:多天线,无限局域网,组态软件,客户机/服务器体系结构 Abstract: This paper proposes the methods of design and implementation of a type of multi-antennae WLAN based detecting system of transformer substation grounded line. And it also introduces the structure of system and software and hardware, and theory of multi-antennae wireless telecommunication which its adpted. The excellent configuration of system assured the stability and reliability under electromagnetism interfering .The system completely fit for the need of situation of electric power industry. Keywords: multi-antennae,WLAN,Configration software, Client/Server