Application Of Embedded System Based On ARM In The Remote Monitor System Of Electrical Network

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.