【正文】 的硬件接口 模塊要求 12V/500mA 供電，與計(jì)算機(jī)或單片機(jī)通過串口通信，波特率 9600bps，通過 SIM 卡座來安裝 SIM 卡。它不再依賴有線電話執(zhí)行報(bào)警，而是借助最可靠、最成熟的 GSM 移動(dòng)網(wǎng)絡(luò)，以最直觀的中文短消息或電話 形式，直接把報(bào)警地點(diǎn)的情況反映到您的手機(jī)屏幕上。 具有很大的市場價(jià)值， 【關(guān)鍵詞】 單片機(jī) GSM 模塊 傳感器 The Family guard against theft and alarm system Based on GSM Modem Author: wu jun Director:liuyancang Abstract The System is made up of MCU and GSM Modem. It will display the alarm content in Chinese directly at your mobile screen, and it recurs to the most reliable GSM mobile work. The system adopted initiative infrared sensor to detect, and it turned the traditional alarm and alarm windows to immateriality. Besides, the system equipped the smog sensor and leakiness sensor of gas and guarded against fire and gas leakiness. 【 keywords】 MCU GSM modem sensor 大慶石 油學(xué)院應(yīng)用技術(shù)學(xué)院畢業(yè)論文 II 摘 要 ................................................................................................ I 第一章 單片機(jī)概述 ............................................................................ 1 AT89S52的主 要性能 .............................................................................................................. 1 AT89S52的功能特性描述 ..................................................................................................... 1 ............................................................................................................... 2 第 2章 GSM 模塊 ........................................................................... 3 HRH GSM MODEM介紹 .................................................................................................... 3 GSM Modem 的主要功能 ....................................................................................... 3 GSM Modem 的硬件接口 .................................................................................................... 3 HRH GSM Modem 的軟件協(xié)議 .......................................................................................... 3 設(shè)置短信中心號(hào) .............................................................................................................. 3 第 3章 鍵 盤 顯 示 ........................................................................... 6 HD7279鍵盤顯示芯片 ........................................................................................................... 6 HD7279的典型應(yīng)用電路： ................................................................................................... 7 第 4章 鐵電存儲(chǔ)器 ............................................................................ 8 鐵電存儲(chǔ)器的特點(diǎn) ................................................................................................................. 8 二線制協(xié)議 .............................................................................................................................. 8 第 5章 實(shí)時(shí)時(shí)鐘 .............................................................................. 10 DS12887功能與特點(diǎn)介紹 .................................................................................................... 10 、日歷和定鬧單元 ........................................................................................................ 10 大慶石 油學(xué)院應(yīng)用技術(shù)學(xué)院畢業(yè)論文 III DS12887引腳定義 ............................................................................................................. 11 第六章 后備電源 .............................................................................. 12 ： ......................................................................................................................... 12 ： ........................................................................................................ 12 第 7章 遙 控 器 .............................................................................. 14 、接收電路無解碼電路圖 ........................................................................................... 14 第 8章 傳 感 器 ........................................................................... 14 第八章 傳感器 ................................................................................. 15 紅外傳感器 ............................................................................................................................ 15 煙霧傳感器 ............................................................................................................................ 15 ....................................................................................................