应用新型嵌入式系统设计电力通信管理机

Design of communication processor with embedded system

通信管理机是电力自动化系统中的重要设备。通信管理机作为通信网与监测设备之间的接口设备,通信管理机承担规约转换和接口匹配、数据汇总2项任务。目前,通信管理机的设计有2类(单片机+汇编语言;工控机+VC++语言)。采用新型嵌入式系统设计通信管理机,提出2种设计方案。第1种采用高级精简指令微处理器(ARM)芯片+μClinux操作系统设计,ARM芯片功耗低、体积小、价格低,该方案性价比最高。第2种采用PC-104主板+WinCE操作系统设计,体积、价格稍高,但软、硬件设计简单,开发周期短。所提出的采用新型嵌入式系统设计通信管理机的方案,性价比高,实用性强。

The communication processor,the interfacing device monitoring units, is important interface matching, as well as in power automation system. It data collecting. There are two 200093, China） between communication net and implements protocol conversion and kinds of design methods at present： single-chip ＋assembly language and industrial control computer＋ VC＋＋ language. Two schemes are presented,which apply the new embedded system： ARM （Advanced RISC Machines） - chip ＋ μClinux operating system and PC-104 main board＋WinCE operating system. The former is cheap with better performance- cost ratio,low power consumption and small size. The later is bigger and more expensive,but easier in software/hardware design and shorter in development period. The proposed communication processor design scheme based on the new embedded system is practical with high performance- cost ratio.