【摘要】 介绍了GSM(全球移动通信系统)/GPRS(通用分组无线电业务)模块SIM100-E的硬件接口特性、功能和AT命令,以及短消息模式下的PDU格式和数据编码方式,并详细介绍了该模块在无线抄表系统中的作用以及使用方法,给出了该模块在系统中的硬件连接实图和部分关键代码,其中,硬件部分采用AT89S52单片机控制该模块,软件部分为KEILC51编写的C代码程序。该模块可发送和接收抄表系统中所有的抄表信息,增加系统的灵活性,降低系统成本及功耗。更多还原

【Abstract】 This paper introduces the characteristics of hardware interface,functions and AT command of the GSM/GPRS module SIM100-E,and the format of PDU and data coding mode in the SMS mode.At the same time,it introduces in detail the functions and applications of the SIM100-E module in the wireless meter-reading system.The connecting diagram of hardware of the module and parts of the key codes in the wireless meter-reading system are presented.In the module,the SCM AT89S52 is employed to control this module and the software is C code edited in KEILC51. This module can send and receive all the information from the meter-reading system,enhance system flexibility and reduce system cost and power consumption.更多还原