AMI系統(tǒng)下基于嵌入式Linux的專變采集終端設(shè)計(jì)
[Abstract]:With the rapid development of economy and the expansion of power demand, the collection of power information and load control management on the power demand side become more and more important. The special transformer acquisition terminal is an important power information acquisition and management equipment under the advanced metering architecture (Advanced Metering Infrastructure, AMI) system. Its main functions include data acquisition, data processing, load control, event recording, data transmission and so on. In this paper, a solution based on high performance 32-bit embedded RISC SOC hardware platform and real-time embedded Linux operating system software platform is proposed. In the aspect of terminal hardware design, according to the standard of embedded industrial computer system, the motherboard unit, communication module, independent metering unit and antistatic are studied by using platform and modularization design strategy. Anti-misconnection 380V AC voltage, lightning protection function of meter reading circuit. In the aspect of software design, the embedded Linux real-time operating system is used to study the driver design of embedded Linux based on AT91SAM9260 platform, including UART,SPI bus, NAND Flash,RTC clock, watchdog and so on. The application software adopts modular hierarchical design from top to bottom, including communication module, exception handling module, load control module and so on, which has good expansibility and portability. According to the current practical application, the special transformer acquisition terminal of this design scheme is stable and reliable, and meets the expected results and functional requirements.
【學(xué)位授予單位】:華北電力大學(xué)
【學(xué)位級(jí)別】:碩士
【學(xué)位授予年份】:2012
【分類號(hào)】:TM76;TP368.1
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