【作者】 刘冬明；

【导师】 李正明；

【作者基本信息】 江苏大学 ， 农业电气化与自动化， 2005， 硕士

【摘要】 电网监测仪是电网远程监控系统的终端产品,是实现现代电网管理的一个重要组成部分。 本论文在了解电网远程监控系统的现状和发展趋势的基础上,提出了采用ARM微处理器和μC/OS-Ⅱ实时操作系统的电网远程监控系统的研制方案。 该方案在硬件设计上采用ARM微处理器—S3C44B0X作为主控制器,提高了系统的运行速度和数据处理能力,并根据电网监测仪所要实现的功能,设计了电网参数测量和网络通讯等硬件模块进行数据采集和远程监控。 为了满足电网远程监控的实时性和处理复杂多任务的需要,将μC/OS-Ⅱ移植到电网监测仪的微处理器上,并在该实时操作系统上嵌入LwIP协议栈,建立了电网远程监控的软件平台。设计了电网监测仪的应用软件,使得电网监测仪可以直接与Internet相互连接,能够接收远程控制主机的命令并向远程控制主机发送采集数据与当前状态信息。另外,本系统实现了本地/远程升级的功能,使系统更利于维护、更新,延长了产品的使用周期。 利用VB和SQL Server数据库技术,设计监控主机的应用软件。实验中采用Internet作为电网监测仪和监控主机之间主要的通讯方式,实现了电网远程监控,得到令人满意的结果。更多还原

【Abstract】 Monitor instrument of electrical network is the terminal product in the remote monitor system of electrical network, and it is the most important part to manage modern electrical network.Based on the actuality and developing trend in the remote monitor system of electrical network, the thesis proposed a new way, which combined the ARM MPU and real-time operating system-μC/OS-Ⅱ, to design it.In hardware design, used ARM MPU—S3C44B0X as the main control unit, which increased the operating speed and data handling capacity of the system. According to the function of monitor instrument of electrical network, designed modules of parameter measure and network communication to collect data and monitor remotely.In order to satisfy the demand of real-time ability and multitask management, the thesis transplanted μC/OS-Ⅱ to MPU of monitor instrument of electrical network, and embedded LwIP in the real-time operating system, then set up the software platform. At the same time, designed application of monitor instrument of electrical network, which made it possible to connect with Internet directly, receive command from remote control computer and transmit data and current status information to it. Moreover, the thesis updated the function of system in local and long distance, which made it easier to maintain and update the system, extended the product’s service time.VB and SQL Server were applied to design application of monitor computer. In experiment, adopted Internet as the communication way between monitor instrument of electrical network and control computer, which realized the remote monitor of electrical network, and achieved satisfied result.更多还原