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| 摘要: |
| 介绍了基于全球移动通信系统(GSM)／分组无线业务(GPRS)的远程遥控系统。该系统由以单片机AT89C51和双音多频MT8870解码芯片为核心的系统硬件及软件组成。详细叙述了系统硬件(中央控制、铃流检测、DTMF解码、语音提示、摘机／挂机)电路、软件工作流程图。说明了系统网络控制和电话自动报警功能。该系统使用户通过移动或固定电话可实现电力开关和电力设备的远程控制。 |
| 关键词: 全球移动通信系统 分组无线业务 远程遥控 解码 |
| DOI： |
| 分类号:TP872 TN92 |
| 基金项目:河南省科技厅科技攻关项目 |
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| Substation remote control system based on GSM/GPRS |
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ZHAO Ming-fu
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| Abstract: |
| A remote control system based on GSM(Global System for Mobile communication) /GPRS(General Packed Radio Service) is introduced.It is composed of software and hardware,with single chip AT89C51 and DTMF decoding chip MT8870 as its cores.The circuits of central control,ringing detection,DTMF decoding,sound prompt and picking /hanging-up are described,as well as software flowchart.The extended functions of network monitoring and automatic alarm are illuminated.Users can remotely control the power switches and equipment through mobile or fixed telephones. |
| Key words: GSM,GPRS,remote control,decoding |
