【正文】 編號： 畢業(yè)設(shè)計說明書題 目： 家庭智能緊急呼救系統(tǒng)設(shè)計 學(xué) 院： 信息與通信學(xué)院 專 業(yè)： 電子信息工程 學(xué)生姓名： 學(xué) 號： 指導(dǎo)教師： 職 稱： 題目類型： 理論研究 實驗研究 √ 工程設(shè)計 工程技術(shù)研究 軟件開發(fā)2022 年 6 月 5 日桂林電子科技大學(xué)畢業(yè)設(shè)計（論文）報告用紙 第 0 頁 共 2 頁 摘 要本設(shè)計介紹了家庭智能緊急呼救系統(tǒng)的設(shè)計以及工作原理。隨著信息技術(shù)的飛速發(fā)展和人民生活水平大幅提高，人們對家居安全的重視程度不斷提高。如今很多老人或兒童尤其是殘疾人或有突發(fā)性疾病的患者等，在遇到突發(fā)事件時，如盜賊入室、火災(zāi)、燃?xì)庑孤?、疾病求助等由于自身行動不方便或者過度驚慌沒能發(fā)出報警的信息。最基本的電話求助已不能保證他們的居家安全，必須建立一個穩(wěn)定、可靠、易操作的急救報警系統(tǒng)。為了解決以上問題，本畢業(yè)設(shè)計通過 GSM 模塊、煤氣檢測傳感器、煙霧傳感器、紅外傳感器與單片機(jī)的聯(lián)接，實現(xiàn)對家庭的安全進(jìn)行實時監(jiān)測，當(dāng)發(fā)生異?，F(xiàn)象時發(fā)出報警的聲音，通過 GSM 模塊發(fā)出求救信息；同時設(shè)計無線求救模塊，當(dāng)有緊急情況時，可以通過無線求救模塊發(fā)出求救信息。本設(shè)計也可以通過手機(jī)發(fā)送信息對系統(tǒng)進(jìn)行復(fù)位以及獲取當(dāng)前每個傳感器的實時信息如溫度、氣體濃度、紅外傳感器的狀態(tài)，從而實現(xiàn)防火、防燃?xì)庑孤⒎辣I的作用。在這個系統(tǒng)當(dāng)中，GSM 模塊與單片機(jī)之間的通信進(jìn)行信息的雙向傳輸是最關(guān)鍵的，因為如果不能確保它們之間的正常通信，就算是檢測到了突發(fā)事件的發(fā)生，不能把求救信息發(fā)送出去，那么設(shè)計就失去了意義。關(guān)鍵詞：單片機(jī)；GSM；手機(jī)；傳感器；無線模塊桂林電子科技大學(xué)畢業(yè)設(shè)計（論文）報告用紙 第 1 頁 共 2 頁 ABSTRACTThis design introduces a family of Intelligent emergency call system design and working principle. With the rapid development of information technology and a substantial increase in people39。s living standards, people are attaching increasing importance of home safety. Today, many elderly people or children, especially disabled or sudden illness of patients, when faced with an emergency, such as thieves burglary, fire, gas leaks, disease help. Inconvenient due to their own actions or excessive panic did not alarm information can be issued, the most basic telephone help can not guarantee the security of their home, you must create a stable, reliable, easy to operate the emergency alarm system.In order to solve the above problems, the graduation project by GSM module, gas detection sensors, smoke sensors, infrared sensor and microcontroller connection to achieve realtime monitoring of the safety of the family, issued the alarm sound when an abnormal phenomenon, through the GSM module send out a distressinformation。 designed wireless distress module, when there is an emergency situation, by wireless distress module sent out distress. The design can also send a message through the mobile phone to reset the system and access to realtime information for each sensor such as temperature, gas concentration, infrared sensor status, in order to achieve fire prevention, gas leakage, the role of security.In this system, twoway transmission of information munication between the GSM module and the monolithic integrated circuit is the key, because if you can39。t ensure the normal munication between them, even if it is to detect the occurrence of unexpected events, can39。t help information is sent out, then the design will lose its significance.KEY WORDS: MCU。 GSM。 mobile phones。 sensor。 wireless modul桂林電子科技大學(xué)畢業(yè)設(shè)計（論文）報告用紙 第 0 頁 共 1 頁 目 錄引言 ...........................................................................................................................................1第 1 章 系統(tǒng)原理及方案論證 .......................................................................................1 方案設(shè)計以及原理框圖 .........................................................................................................................1 方案論證 ......................................................................................................................................................2第 2 章 單片機(jī) ...................................................................................................................3 STC12C5A60S2 單片機(jī)介紹 ...................................................................................................................3第 3 章 GSM 模塊 ...............................................................................................................5 GTM900C 介紹 .............................................................................................................................................6 GTM900C 的主要特性 ...............................................................................................................................6 GTM900C 的硬件接口 ...............................................................................................................................7 GTM900C的接口特性及技術(shù)特點 ..................................................................................................7 GTM900C管腳分配 ...............................................................................................................................8 GTM900C 與 MCU 之間短信的發(fā)送和接收 .........................................................................................9 短信的發(fā)送 ............................................................................................................................................9 短信的接收 ..........................................................................................................................................15 MCU與 GSM之間短息接收并返回相關(guān)信息 .............................................................................16第 4 章 315M 無線模塊 .................................................................................................22 315M 無線模塊的介紹 ...........................................................................................................................22 315M 無線模塊對 MCU 的控制思路 ...................................................................................................24第 5 章 傳感器模塊 .......................................................................................................25 數(shù)字溫度傳感器 DS18B20 ...................................................................................................................25 煙霧氣體傳感器 .....................................................................................................................................30 紅外傳感器 ...............................................................................................................................................31第 6 章 顯示模塊 ...............................