【正文】
畢業(yè)設(shè)計 具有語音播報功能的水溫控制系統(tǒng) 學(xué) 院: 專 業(yè): 學(xué)生姓名 : 學(xué) 號: 指導(dǎo)教師 : 2021 年 6 月 摘 要 I 摘 要 本文 所描述的具有語音播報功能的水溫控制系統(tǒng)是以成熟的框架為基礎(chǔ)進行設(shè)計 的 ,當前系統(tǒng)框架下 ,設(shè)計之中的區(qū)別主要在于系統(tǒng)各個部分單元電路選用的器件的不同 .因此 ,本 文將首先從 整體框架中硬件的選擇來確定總體電路 ,之后將描述各單元電路可行的元器件 ,在對比中確定優(yōu)先項。 之后將根據(jù)設(shè)計要就進行軟件程序的設(shè)計。 文中確定了已 AT89C51 單片機為核心設(shè)計的系統(tǒng),AT89C51 的強大功能將完成接收鍵盤的指令信號,接受數(shù)據(jù)收集芯片的收集到的實時數(shù)據(jù),進行處理之后將要顯示的部分傳送至 LED 顯示屏,并可根據(jù)需要控制語音輸出 ,根據(jù)預(yù)先設(shè)定的指令控制實現(xiàn)電路調(diào)整水溫。語音播報部分采用集成芯片,進行語音對外傳輸,選用 ISD4004 在很大程度上優(yōu)化了系統(tǒng),ISD4004 采用的是“直接模 擬量存儲”技術(shù),該技術(shù)優(yōu)勢明顯可以直接進行模擬數(shù)據(jù)的錄入,即語音播報部分內(nèi)容可以直接輸入,無需模數(shù)裝換,存儲,再數(shù)模裝換,不但簡化了流程,而且最大限度的減少失真 ,輸出效果較好 。數(shù)據(jù)采集模塊 將使用 DS18B20 數(shù)字化溫度傳感器 , DS18B20 突出的特點是 無需數(shù)模裝換,可以直接接入單片機,減少信號失真??刂茖崿F(xiàn)部分將使用繼電器,由單片機數(shù)的小電流經(jīng)繼電器完成對大電流控制。依靠以上設(shè)計,系統(tǒng)將高效、穩(wěn)定 地 實現(xiàn)數(shù)據(jù)采集、處理、輸出,實現(xiàn)語音播報、溫度控制與恒定。 關(guān)鍵字 : 語音播報 , 水溫控制 , 單片機 , 芯片 , 繼電器 摘 要 II Abstract Paper describes with speech function of the water temperature control system is the basis of mature framework design, the current system frame, design of the main difference lies in the system of each part of the unit circuit choose different devices. So, this paper will first from the whole framework of the choice of hardware to set the overall circuit, then will describe each unit circuit feasible ponents, in contrast to determine a priority. According to the design to after software program design. Are determined already AT89C51 singlechip microputer as the core of the system design, the strong function of AT89C51 will plete the signals received keyboard, accept data collection of chip to collect data in real time, to deal with that is to be revea LED after the part is sent to a display screen, , and based on the need to control speech output, according to the predetermined mand control realization circuit temperature adjustment. Speech broadcast of the integrated chip, for voice foreign transmission, choose ISD4004 largely optimizes the system, ISD4004 USES is the direct simulation amount storage technology, this technology can directly to the advantage of the simulation data entry, namely speech broadcast content can direct input part, without modulus outfit change, storage, and mathematical model with change, not only simplify the process, and minimize distortion, output effect is good. Data acquisition chip will use DS18B20, DS18B20 outstanding characteristic is no mathematical model with change, can directly access microcontroller, reduce signal distortion. Control realize part will use the relay, the number of single chip microputer by small electric current flows through to relay to control. Rely on the above design, the system will be efficient, stable realize data acquisition, processing, output, and realize the speech broadcast, temperature control and constant. Key words: speech broadcast , water temperature control , singlechip microputer, chip, relay目 錄 III 目錄 摘 要 ....................................................... I ABSTRACT .................................................... II 目錄 ....................................................... III 第一章 引 言 ............................................... 1 課題背景及意義 ................................................1 主要設(shè)計技術(shù)指標與 參數(shù) ........................................2 基本要求 ..................................................2 主要性能指標 ..............................................2 主要設(shè)計內(nèi)容 ..............................................2 第二章 系統(tǒng)總體框圖和方案對比論證 .............................. 3 總體方案的對比論證 ............................................3 系統(tǒng)框圖 ......................................................3 單元電路方案的對比論證 ........................................4 數(shù)采集模塊 ................................................4 語音播報模塊 ..............................................5 控制實現(xiàn)模塊 ..............................................6 第三章 硬件單元電路設(shè)計及相關(guān)參數(shù) .............................. 9 單片機 AT89C51 模塊 ............................................9 主要性能參數(shù): ............................................9 功能特性概述 : .............................................9 引腳功能說明 : ...........................................10 按鍵模塊 .....................................................12 數(shù)據(jù)采集模塊 .................................................13 DS18B20 主要特性 .........................................13 封裝及引腳排列、功能 .....................................13 單片機訪問 DS18B20 流程 ...................................14 DS18B20 測溫原理 .........................................15 單片機與 DS18B20 的連接 ...................................16 LED 顯示模塊 .................................................16 語音播報模塊 .................................................17 ISD4004 外部引腳 .........................................18 工作參數(shù) .................................................19 語音播放單元電路 .........................................19 目 錄 IV 執(zhí)行模塊 .....................................................20 固態(tài)繼電器 SSR工作原理 ...................................20 固態(tài)繼電器 SSR的特點 .....................................21 繼電器控制電路圖 .........................................22 時鐘和復(fù)位電路 ...............................................22 時鐘 .....................................................22 復(fù)位電路 .................................................23 主電源電路 ...................................................24 第四章 系統(tǒng)各單元模塊程序設(shè)計 ................................. 23 主程序流程圖 .................................................23 鍵盤模塊程序流程圖 ...........................................24 數(shù)據(jù)采集模塊程序流程圖 ...............................