【正文】 摘 要 公共汽車成為城市人們出行的必備選擇后所面臨的問題是乘客們?nèi)绾文軌蛟谡_的車站下車，如何知道這輛車開向哪里，途中還會(huì)經(jīng)過哪些車站。在一些需要提示乘客注意的情況，比如車在轉(zhuǎn)彎需要注意，或者需要讓座等等，這時(shí)該怎么辦？解決的辦法就是利用公交車報(bào)站器播放語音，提示乘客。在當(dāng)今社會(huì)，即使在私家車越來越多的今天，公交車仍然是人們出行的首選，因?yàn)楣卉嚲哂蟹奖?、快捷、車票便宜等?yōu)點(diǎn)。傳統(tǒng)的公交車報(bào)站主要由售票員報(bào)站，但是有些售票員有著濃重的地方口音，給外地人乘坐公交車造成了困難，另外，隨著無人售票車逐漸增多， 公交車報(bào)站器就越顯得重要了。 本文應(yīng)用單片機(jī)技術(shù)、語音合成技術(shù)設(shè)計(jì)了一種公交車語音報(bào)站和漢字顯示系統(tǒng)，它能很好的模仿人完成報(bào)站任務(wù)，從而解決了人工報(bào)站不準(zhǔn)確不方便等問題。本文設(shè)計(jì)的新型的公交車語音報(bào)站系統(tǒng)， AT89C52 單片機(jī)為核 心，外擴(kuò) ISD1730 語音芯片， LED顯示器和行列驅(qū)動(dòng)芯片。 主要有單片機(jī)的線編程模塊， 話筒，語音芯片，功放、鍵盤按鈕、 LED 顯示程序。通過對(duì)單片機(jī)語音模塊的編程，實(shí)現(xiàn)語音播報(bào)，再有揚(yáng)聲器、及放大電路放大，同時(shí)也可以手動(dòng)觸發(fā)音頻播放，設(shè)置站臺(tái)號(hào)，再通過 LED 顯示程序 顯示出來。該公交語音報(bào)站系統(tǒng)，方便簡單、功能穩(wěn)定，具有一鍵智能操作等功能。 【 關(guān)鍵詞】單片機(jī)、語音芯片、 LED 顯示器 Abstract Bus bee necessary choice of city people travel after facing the question is how the passengers to get off the train at the right, how to know the car open to where, will also be on the way through which the station. In some of the passengers need to pay attention to the situation, such as car in turn need to pay attention to, or need to give up her seat, etc., then what should I do? The solution is to use the bus stops play the voice and prompt passengers. In today39。s society, even in today, more and more private cars, buses are still among their first choices of investment with people travel, because the bus has the advantages of convenient, quick and they are cheaper. Traditional bus stops is mainly posed of the conductor stops, but some of the conductor has a strong local accent, caused difficult for outsiders to ride the bus, on the other hand, as the unmanned vehicle, bus stops, the more important the. This paper introduces the design principle of a new bus automatic stop reporting system, which centers AT89C52 Single Chip Micyoco, concerning ISD1730 speech chip, dot matrix LED character display screen and line driver chip. this system mainly include the single chip microputer line programming module, microphone, voice chip, power amplifier, the keyboard button, liquid crystal display program. Based on single chip microputer voice module programming, the realization of speech, no speaker, and amplifying circuit amplifier, at the same time can also manually trigger audio playback, set up the platform, through the LED display program. Change to bus voice stops system, simple, convenient and stable function, general promotion value 【 keywords】 singlechip、 voicechip、 LEDdisplay 目 錄 一 、 緒 論 ................................................................................................................................ 1 研究背景及意義 ......................................................................................................... 1 研究現(xiàn)狀 ..................................................................................................................... 1 課題研究內(nèi)容 ............................................................................................................. 2 二 、 系統(tǒng)總體方案設(shè)計(jì) .......................................................................................................... 3 方案論證 ..................................................................................................................... 3 控制模塊 ......................................................................................................... 3 語音模塊 ......................................................................................................... 3 顯示模塊 ......................................................................................................... 4 總體方案設(shè)計(jì) ............................................................................................................. 4 三、硬件電路設(shè)計(jì) .................................................................................................................... 5 控制電路設(shè)計(jì) ............................................................................................................. 5 簡介 ................................................................................................... 5 晶體振蕩電路 ................................................................................................. 6 復(fù)位電路 ........................................................................................................ 7 按鍵電路 ........................................................................................................ 8 語音電路設(shè)計(jì) ............................................................................................................. 9 語音電路芯片簡介 ......................................................................................... 9 語音電路設(shè)計(jì) ............................................................................................... 13 LED 顯示電路設(shè)計(jì) ................................................................................................... 13 LED 顯示方式 ............................................................................................... 14 LED 驅(qū)動(dòng)原理 ............................................................................................... 15 顯示電路 ....................................................................................................... 16 電源 ........................................................................................................................... 16 四、軟件設(shè)計(jì) .......................................................................................................................... 18 主程序流程圖 ........................................................................................................... 18 錄音程序流程圖 ...................................................................................................... 19 放音程序流程圖 ...................................................................................................... 20 LED 顯示流程圖 ....................................................................................................... 21 五、總結(jié) ...........................