【正文】
(論 文 ) 基于單片機(jī)的倒車?yán)走_(dá)系統(tǒng)設(shè)計(jì) 系 別 自動(dòng)化工程系 專 業(yè) 自動(dòng)化工程 班級(jí)學(xué)號(hào) ******* 姓 名 ** 指導(dǎo)教師 ** 2020 年 6 月 10 日 東北大學(xué)秦皇島分校畢業(yè)設(shè)計(jì) (論文 ) 第 I 頁 基于單片機(jī)的超聲波倒車?yán)走_(dá)系統(tǒng)的設(shè)計(jì) 摘 要 目前,隨著 人民生活的富裕以及政府汽車下鄉(xiāng)等相關(guān)政策扶持,中國居民購買汽車的數(shù)量急劇增加,交通面臨極大壓力,車主由于實(shí)時(shí)路況有時(shí)不得不倒車改道另行,另一方面,泊車位的缺少讓車主必須將車??吭谝恍┨厥饴范?。如果后視能力不足,容易引起追尾等交通事故。因此,提高車主的后視能力,研制汽車尾部探測(cè)障礙物的倒車?yán)走_(dá)是必要的,也是發(fā)展趨勢(shì)。 本文利用超聲波近距離無接觸測(cè)距的原理,設(shè)計(jì)了以 AT89S52 單片機(jī)為核心的倒車?yán)走_(dá)系統(tǒng)。該系統(tǒng)由 超聲波發(fā)射模塊、單片機(jī)處理模塊、 超聲波 接收模塊、數(shù)碼顯示以及聲光報(bào)警等模塊組成。本文詳細(xì)介紹了各模 塊的組成和原理,以及系統(tǒng)工作過程、硬件組成和軟件調(diào)試。 本文共分為五部分,第一部分介紹了設(shè)計(jì)背景,第二部分是總體設(shè)計(jì)方案,接下來的三個(gè)部分分別對(duì)硬件和軟件部分進(jìn)行了詳細(xì)介紹,最后一部分 對(duì)畢業(yè)設(shè)計(jì)工作做了一個(gè)總結(jié)并提出進(jìn)一步的工作。 關(guān)鍵詞 : AT89S52,超聲波測(cè)距,倒車 東北大學(xué)秦皇島分校畢業(yè)設(shè)計(jì) (論文 ) 第 II 頁 Design of Ultrasonic Vehicle Reversing System based on MCU Author: Guo Peng Tutor: Cai Ling Abstract In recent years, as the people39。s life and the government39。s Car Subsidy Program for Rural Areas and so on related policy support, the numbers of Chinese citizens buying cars sharply increased. The traffic face great pressure. Because of realtime traffic, sometimes owners of cars have to reverse the car to change their path. What’s more, the absence of the parking place makes the owners park the car in some special sections. If the cars have insufficient capacity of back vision, it”ll cause on such fundation of traffic accidents easily. Thus, improving the owner39。s ability of back vision, developing the system of reversing radar detecting obstacles is necessary and development tendency. This article is based on the principle of ultrasonic detecting obstacles nearby without touching, designing the reversing radar systems based on AT89S52 singlechip. This system consists of ultrasonic emiting module, SCM processing module, the signal receiving module, digital display and the acoustooptic alarm etc module. This paper mainly introduces the position and principle of each module in the system, and working process, the hardware position and software debugging. This paper is divided into five parts, the first part introduces the background of designing, the 2nd part is the overall designing scheme, the next three parts make a detailed introduction of hardware and software, the last part of the work makes a summary and puts forward further work. Key Words :AT89S52 , ultrasonic detecting , reverse 東北大學(xué)秦皇島分校畢業(yè)設(shè)計(jì) (論文 ) 第 III 頁 目 錄 1 緒論 ...................................................................................................................................... 1 倒車?yán)走_(dá)的研究背景及意義 ........................................................................................ 1 倒車?yán)走_(dá)的發(fā)展現(xiàn)狀 .................................................................................................... 2 論文的主要內(nèi)容 ............................................................................................................ 3 2 總體設(shè)計(jì)方案 ...................................................................................................................... 4 超聲波測(cè)距的相關(guān)介紹 ................................................................................................. 4 超聲波測(cè)距原理 ...................................................................................................... 4 超聲波測(cè)距的實(shí)際應(yīng)用 ..........................