The Development Of Electric Network Breakdown Recording Device Intelligence Front Gathering Based On ARM

Along with the arrival of electric power network's magnification, complication and the tendency of region network interconnection, the electrical power system's behavior will be more and more complex. The breakdown records device, as the recording equipment of electrical power system transition process , electrical power system is also more and more high to its request.The paper in detail introduces one kind embedded breakdown records device which satisfies the distributional electrical network breakdown diagnosis system: intelligence front gathering of breakdown records device. Its main function is the data gathering, the start judgment and the network correspondence, and data analysis function realizes by the backstage supervisor. It suits in 220～500kV voltage rank's electrical power system breakdown recording.Uses 32-bit embedded microprocessor ARM and the high speed DSP multi-tasking; Designs the FPGA hardware data sampling controller to produce the control signals, and guarantee sampling precision; May record 36 groups analog signals and 80 groups switches signals; Uses distributed and modular design distributionally, may dispersely install in the screen cabinet, also may be linked to a management computer or transfer data to the far control center through the 10M/100M ethernet.The system uses embedded operating systemμCLinux, which has consummate network function and splendid file system, thus it is advantageous for carrying out the software design. SinceμCLinux is not a real-time operating system, uses RTlinux patch to improve system real-time performance.At present, the hardware system design and the debugging work have already completed,μCLinux transplant work has already completed, and we can use FTP transport protocols to download procedure or document.