【正文】 .....................................................................................................................................II 目 錄 ........................................................................................................................................... III 第 1 章 緒 論 ............................................................................................................................... 1 課題背景 .......................................................................................................................... 1 光電防盜報警系統(tǒng)的發(fā)展狀況 ...................................................................................... 1 論文研究的目的和內(nèi)容 .................................................................................................. 2 報警系統(tǒng)原理框圖 .......................................................................................................... 2 第 2 章 單片機原理介紹 ............................................................................................................... 3 單片機發(fā)展概況 ............................................................................................................... 3 MCS51 單片機內(nèi)部結(jié)構(gòu) ................................................................................................ 3 單片機電路 ....................................................................................................................... 6 第 3 章 傳感器檢測系統(tǒng)原理介紹 ............................................................................................... 8 防盜報警裝置 ................................................................................................................... 8 防盜報警探測器的種類 ................................................................................................... 8 溫 濕度傳感器 ................................................................................................................... 9 光電傳感器技術(shù) ............................................................................................................. 12 脈沖式光電傳感器 ......................................................................................................... 13 超聲波傳感器技術(shù) ......................................................................................................... 13 第 4 章 系統(tǒng)硬件設計 ................................................................................................................. 15 電源電路的實現(xiàn) ............................................................................................................. 16 傳感器檢測與信號控制電路 ......................................................................................... 16 遙控發(fā)射部分電路設計 ................................................................................................. 17 報警電路功能的實現(xiàn) ..................................................................................................... 18 DS1302 實時時鐘電路 ................................................................................................... 19 第 5 章 軟件設計 ......................................................................................................................... 21 主程序 ............................................................................................................................. 21 中斷返回服務程序 ......................................................................................................... 22 結(jié) 論 ........................................................................................................................................... 23 致 謝 ........................................................................................................................................... 24 參考文獻 ....................................................................................................................................... 25 附錄 A ........................................................................................................................................... 26 附錄 B ........................................................................................................................................... 28 附錄 C ........................................................................................................................................... 30 哈爾濱遠東理工學院學士學位論文 1 第 1 章 緒 論 課題背景 隨著信息技術(shù)的普及和發(fā)展，尤其是在跨入新千年以后，紅外技術(shù)得到了迅猛的發(fā)展，紅外線側(cè)技術(shù)已經(jīng)滲透到國民經(jīng)濟的各行各業(yè)和人們生活的方方面面，在安全防范方面，基于紅外探測技術(shù)的紅外入侵報警器又稱為紅外防盜報警器，作為一種新的技術(shù)，它已經(jīng)越來越得到社會各界的重視和廣泛的 應用。 關鍵詞 ： 8051 單片機 ；紅 外傳感器； 18B20；無線發(fā)射和接收 哈爾濱遠東理工學院學士學位論文 II Abstract As the society progresses unremittingly with the development of science, technique and economy continuously, the lives of people get a very great exaltation. The protective consciousness of private possession is in the continuous to build up, as a result, put forward a new request towards the guarding measurement. Now the Householduse thiefguarding system has bee essential equipment for building a house. For satisfying a modern residential demand, we design this remote control thiefguarding system. This text mainly introduces a thiefguarding system which is based on the single chip microputer system is mainly constituted by a remote infrared blaster, an infrared receiver which is controlled by single chip microputer 8051,hotelectric infrared sensor P228, detective circuit, alarm circuit and electric switch circuit. Since this system adopt doublecheck mode to monitoring and discriminating the indoor circumstance, two circuits of sensors will output tow types of signals .The logic ―and‖ will discriminate that there is a thief or not, and then input the signal to the 8051 can make the decision whether to trigger the alarm circuit based on the signal which is output by the monitoring circuit, so it can prevent false alarms. The system will