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鉴于智能终端的系统软件远程升级和维护困难的问题,提出了一种基于LPC2114和GPRS的远程系统软件升级的设计方案。介绍了LPC2114的主要性能和特点,片上Flash的构成及IAP编程原理,GPRS数据传输的通信协议,并系统地阐述了IAP技术在远程配变监控终端上的应用与实现。实践证明该方案较好地解决了终端软件远程升级和维护困难的问题,缩短了终端软件系统的开发周期。最后对远程IAP升级方案的可靠性进行了探讨。
In view of the difficulty of remote upgrade and maintenance of the system software of the intelligent terminal, a solution for upgrading the remote system software based on LPC2114 and GPRS is proposed. This paper introduces the main performance and features of LPC2114, the structure of on-chip Flash, the IAP programming principle and the communication protocol of GPRS data transmission. The application and realization of IAP technology in remote distribution transformer monitoring terminal are also described systematically. Practice has proved that the program to better solve the remote terminal software upgrade and maintenance problems, shorten the terminal software system development cycle. Finally, the reliability of remote IAP upgrade scheme is discussed.