配电终端的嵌入式程序更新系统设计

Design of Embedded Program Update System for Distribution Terminal

针对配电网中配电终端数量多、分布广以及经常需要维护更新的问题,为提高现场程序更新的工作效率,设计实现了一种配电终端嵌入式程序更新的系统。本系统以配电终端Flash的扇区大小为单位进行读写,既减少了程序对Flash的操作次数,也避免了一帧数据跨扇区存储的问题,使得整个程序更新过程有效减少了对Flash的读写操作,节省了时间。本文介绍了具体实现策略,并已在部门产品中得到了应用和验证。

Aiming at the problems of large number,wide distribution and frequent maintenance and update of distribution terminals in distribution network,in order to improve the work efficiency of on-site program update,an embedded program update system for distribution terminals is designed and implemented.This system takes the sector size of the power distribution terminal flash as the unit to read and write,which reduces the number of flash operations and avoids the problem of cross sector storage of a frame of data,so that the whole program update process effectively reduces the read and write operations of flash and saves time.This paper introduces the specific implementation strategy,which has been applied and verified in department products.