【正文】 幕上。具有很大的市場(chǎng)價(jià)值，【關(guān)鍵詞】單片機(jī) GSM 模塊 傳感器The Family guard against theft and alarm systemBased on GSM ModemAuthor: wu jun Director:liuyancangAbstractThe 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 的管腳排列 ...........................................................................................................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 時(shí)間、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 滯回比較器： .....................................................................................................................12 滯回比較器工作原理： .....................................................................................................12第 7 章 遙 控 器 .....................................................................................14 發(fā)射、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 氣體泄漏傳感器 .....................................................