超聲波測距離在汽車上的應(yīng)用(doc畢業(yè)設(shè)計(jì)論文)

1、目錄摘要.........................................................IXAbstract.......................................................X第一章緒論....................................................11.1課題背景............................

2、...............................11.2國內(nèi)汽車倒車?yán)走_(dá)預(yù)警系統(tǒng)的現(xiàn)狀.....................................11.3本課題研究內(nèi)容.....................................................2第二章超聲波倒車?yán)走_(dá)測量儀的測量原理..........................32.1超聲波.................

3、............................................32.1.1超聲波概念及特點(diǎn)..............................................32.1.2超聲波傳播速度................................................32.1.3超聲波頻率............................................

4、........32.2超聲波傳感器.......................................................42.3超聲波倒車?yán)走_(dá)測量原理.............................................5第三章系統(tǒng)硬件設(shè)計(jì)............................................73.1硬件電路整體結(jié)構(gòu)說明...................

5、............................73.2電源設(shè)計(jì)...........................................................73.2.1復(fù)位電路設(shè)計(jì).................................................83.3超聲波發(fā)射電路.....................................................

6、93.3.1MSP430單片機(jī).................................................93.3.2發(fā)射電路方案選擇.............................................103.4超聲波接收電路....................................................123.4.1運(yùn)算放大器NE5532簡介.............

7、...........................133.4.2LM567及鎖相環(huán)電路...........................................133.4.3光電隔離電路及光耦6N136.....................................153.5溫度補(bǔ)償電路......................................................163.5.1數(shù)字

8、溫度傳感器DS18B20.......................................163.5.2DSl8B20工作過程及時(shí)序.......................................203.5.3DS18B20與單片機(jī)接口電路....................................223.6LCD顯示電路.......................................

9、...............233.6.1LCD模塊LCM12864H..........................................233.6.2LCM12864H與單片機(jī)接口電路..................................243.7語音提示電路......................................................25超聲波測距離在汽車上的應(yīng)用摘要本文

10、探討了超聲波測距離在汽車上的應(yīng)用問題，也就是我們常說的倒車?yán)走_(dá)，即一種汽車倒車?yán)走_(dá)測量預(yù)警系統(tǒng)，該系統(tǒng)在常見的汽車倒車預(yù)警裝置的基礎(chǔ)上采用計(jì)算機(jī)控制技術(shù)和超聲波測距技術(shù)，通過顯示障礙物與汽車的距離并根據(jù)其距離遠(yuǎn)近實(shí)時(shí)發(fā)出報(bào)警，解除了駕駛員泊車和起動(dòng)車輛時(shí)前后左右探視所引起的困擾，提高了駕駛安全性。本文在研究汽車倒車?yán)走_(dá)測量預(yù)警系統(tǒng)過程中運(yùn)用理論分析，電路設(shè)計(jì)和計(jì)算機(jī)仿真等研究手段完成了倒車?yán)走_(dá)預(yù)警系統(tǒng)硬件和軟件的設(shè)計(jì)。該系統(tǒng)分為測距模塊