基于ARM多处理器的配电远方终端硬件设计

Hard Design of Distribution Terminal Unit Based on ARM Multiprocessors

针对电力系统的实际需要,给出了一种基于嵌入式系统的多CPU管理、多通道多种类通信方式、大容量数据处理能力的智能化DTU硬件平台的设计方案。采用LPC3250与LPC2468协同工作的多处理器构架,实现了电力系统"四遥"功能、对外2路以太网通信接口、6路串行通信接口。详细介绍了各个功能模块的结构,以及遥控、交流采样、直流采样等关键部分的电路连接图。

Aim at the actual needs for power systems,the authors presents a multi-CPU based embedded system management,multi-channel and multi-species communication,high-capacity data processing capability of the intelligence DTU hardware platform design.LPC3250 and LPC2468 are worked using the multi-processor architecture to achieve a power system,＂four remotes＂,External 2-way Ethernet Interface,6-channel serial communication interface.The structure of the various functional modules,as well as remote control,AC sampling,DC sampling and other key parts of the circuit design schematic are described in detail.