Substation remote control system based on GSM/GPRS

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作者：
机构：
[1] Zhao, Ming-Fu
来源：
Zhao, M.-F. (mingfuzhao@sina.com) | 2005年 / Electric Power Automation Equipment, 38 New Mofan Malu, Nanjing, 210003, China卷 / 25期
关键词：
Computer hardware - Computer software - Decoding - Global system for mobile communications - Microprocessor chips - Radio systems - Remote control;
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摘要：
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.
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