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针对分散型测控系统中终端系统软件升级和维护困难的问题,提出一种以GPRS网络作为通信链路,采用应答机制、断点续传和IAP等技术,实现了对分散型测控系统中终端系统软件的远程在线升级.实际应用表明,该设计方法具有高效、高可靠性的特点,可显著提高分散型测控系统中终端系统软件升级的便利性,大大缩短系统的维护周期、降低维护成本.
Aiming at the problem of terminal system software upgrade and maintenance difficulties in decentralized measurement and control system, this paper proposes a GPRS network as a communication link, using answering mechanism, HTTP and IAP technology to achieve the distributed measurement and control system terminal system Software is upgraded remotely.The practical application shows that the design method is highly efficient and highly reliable, which can significantly improve the convenience of software upgrades of terminal system in decentralized measurement and control system, greatly shorten the maintenance period of the system and reduce the maintenance cost.