GSM短消息在雨量RTU系统中的实现

摘要

In order to achieve the communication function of rainfall RTU system, first of all to realize the communication function of the communication module, the design and function realization of communication module is a key part of the system. In response to this request, regard SIM900A chip and an effective SIM phone cards as core to complete the hardware design of the system communication module, the software uses the AT instruction sets as GSM and GPRS communication mode through serial debugging tools to achieve the communication function of the system, This paper mainly introduces the GSM short message to achieve the communication function of the system. Proved by experiments, while the GSM short message communication mode with a Limited length of a short message and a presence of delay, but in this article the communication success rate and real-time of rainfall RTU system can meet needs of practical application design, to meet the design requirements.%要想实现雨量RTU系统的通信功能,首先要实现系统通信模块的通信功能,因此系统中通信模块的设计和功能实现是系统的关键部分.针对这一要求,围绕SIM900A芯片和有效SIM电话卡完成系统通信模块的硬件设计,软件方面使用AT指令集以GSM和GPRS通信方式通过串口调试工具实现系统的通信功能,本文主要介绍GSM短消息方式实现系统的通信功能.通过实验证明,虽然GSM短消息具有短消息长度受限和存在延时的缺陷,但是本文设计的雨量RTU系统通信的成功率和实时性可以达到实际应用的需要,符合设计的要求.