摘要
过程分析仪器已在钢铁冶金、石油化工、环境保护等诸多领域取得了广泛的应用,因工作环境复杂,其维护工作往往困难不易。本文主要根据当前过程分析仪器的维护方式,介绍了Flash在线编程模式,提出了一种支持多种链路类型的在线升级系统的设计方案,并实现了基于GPRS DTU的远程在线升级链路。
Process analyzer instrument has been widely applied in many fields,such as ferrousmetallurgy,petrochemical complex,environmental protection,and so on.The maintenance workfor the instrumentation is always filled with difficulty because of the complex operationalenvironment.In accordance with the current way of instrumentation＇s maintenance,this paperintroduces User Mode for NAND Flash and the design proposal of multi-link online upgradesystem.Finally,this system has successfully completed the remote online upgrade link based onGPRS DTU.
