基于嵌入式系统的变电站无线监测系统设计

Design of a Substation Wireless Monitoring System Based on the Embedded System

研制了一套基于嵌入式系统和无线通信技术的变电站实时监测系统,详细介绍了系统的总体方案与具体软硬件设计,实现了开关柜局放在线监测和变电站室内环境在线监测。站端监测主机基于Cortex-A9架构及Linux操作系统,采用QT和SQLite开发应用程序,具有现场数据管理、查询、报警等功能。通信采用ZigBee和GPRS无线技术,解决了已建变电站现场布线困难、成本高等问题。研究和实验表明,系统稳定可靠、扩展灵活,现场安装、操作方便,具有广阔的应用前景。

A real-time substation monitoring system is developed on the basis of the embedded system and wireless communication technology. The general system scheme and hardware/software design is introduced in detail.Online monitoring of partial discharge of switch cabinets and substation indoor environment is realized.Based on Cortex-A9 framework and Linux operating system and adopting QT and SQLite development utility program,the station monitoring host has such functions as onsite data management,query and alarm. The system communication adopts ZigBee and GPRS technology to solve problems of difficult wiring and high cost for existing substations.Research and experiment shows that the system is characterized by its high stability and reliability,flexible expansion, easy operation and installation,and has a broad application prospect.