【正文】 specific hardware along with the continuous improvement of people39。單片機(jī)數(shù)據(jù)處理之后，發(fā)出控制信息改變報(bào)警和控制執(zhí)行模塊的狀態(tài)，同時(shí)將當(dāng)前溫度信息發(fā)送到LED進(jìn)行顯示，發(fā)出控制信號(hào)達(dá)到控制蜂鳴器和發(fā)光二級(jí)管的目的。 論文 主要介紹了一個(gè)基于 51 單片機(jī)的溫度信號(hào)采集顯示系統(tǒng)的設(shè)計(jì)，主要敘述了單片機(jī)溫度采集控制系統(tǒng)的硬件電路設(shè)計(jì)、調(diào)試過(guò)程。分 類(lèi) 號(hào)： TP39 編號(hào)：BY 15 5019 10/11/2 140703 沈陽(yáng)化工大學(xué) 本科畢業(yè)論文 題 目： 基于單片機(jī) 的 溫度測(cè)試系統(tǒng)硬件設(shè)計(jì) 院 系 ： 信息工程學(xué)院 專(zhuān) 業(yè)： 電氣工程及其自動(dòng)化 班 級(jí)： 電氣 學(xué)生姓名： 指導(dǎo)教師： 論文提交日期： 2020 年 6 月 27 日 論文答辯日期： 2020 年 6 月 28 日 畢業(yè)設(shè)計(jì)（論文）任務(wù)書(shū) 電氣工程及其自動(dòng)化專(zhuān)業(yè) 電氣 0703 班 學(xué)生：王麗偉 畢業(yè)設(shè)計(jì)（論文）題目： 基于單片機(jī) 的 溫度測(cè)試系統(tǒng)硬 件設(shè)計(jì) 畢業(yè)設(shè)計(jì)（論文）內(nèi)容： 了解單片機(jī)基本和溫度傳感器的基本原理，熟練使用單片機(jī)的溫度傳感器進(jìn)行單片機(jī)溫度測(cè)試系統(tǒng)硬件設(shè)計(jì)。本系統(tǒng)主要包括： DS18B20 溫度傳感器、控制電路、顯示電路三大部分。即可實(shí)現(xiàn)溫度信號(hào)采集轉(zhuǎn)化，顯示與報(bào)警功能！ 該系統(tǒng)設(shè)計(jì)和布線簡(jiǎn)單、體積小、重量輕、性價(jià)比高、擴(kuò)展方便。s living standard, singlechip control is undoubtedly one of the objectives pursued, it gives people the convenience can not be negative, in which digital thermometer is a typical example, but people its increasingly high demand for people to work, scientific research, life and more convenient to provide better facilities will need to start from the number of singlechip technology, all toward the digital control, intelligent control of direction. Paper introduces a singlechip based on 51 shows that the temperature signal acquisition system is mainly described in singlechip temperature control system for acquisition of hardware circuit design and software development, debugging process. Of the system include: temperature acquisition , control circuit, signal amplification circuit, most is the temperature functions of detection, numerical display. DS18B20 temperature sensor to detect temperature on the environment, a single bus transfer to the singlechip, singlechip microputer as the data processing and control unit, in order to carry out data processing, a single Control the number of temperature sensors, the temperature signal from a singlebus digital temperature sensor on the transmission to the singlechip microputer. Singlechip data processing, the issue of control information and control to change the alarm status of the implementation of modules, at the same time, current temperature information is sent to the LED display, the issue of control signals to control LED and buzzers purposes. Temperature signal acquisition can be realized into shows and alarm functions! Design and layout of the system is simple, small size, light weight, costeffective, easy to expand. Use of appropriate technologies to simulate the temperature of the volume into a digital, although in principle is not difficult but the cost is higher, but also encountered other problems. Therefore, singlechip temperature control system has an important purpose and significance of the design introduced in digital thermometer with a traditional thermometer, pared with a reading of convenience, a wide range of temperature measurement, temperature measurement accuracy, the output of the temperature digital display, the main for more accurate temperature measurement sites, or research laboratory. Key words: Singlechip； temperature sampling； AT89C51； showing 目 錄 第一章 序言 ............................................. 1 ..................................... 1 ................................... 1 ....................... 2 ......................................... 3 溫度自動(dòng)檢測(cè)系統(tǒng)簡(jiǎn) 介 ............................. 3 溫度自動(dòng)檢測(cè)系統(tǒng)的核心 ........................... 3 溫度自動(dòng)檢測(cè)系統(tǒng)發(fā)展 ............................. 3 第二章 硬件的設(shè)計(jì) ....................................... 5 系統(tǒng)方案的總體設(shè)計(jì) .................................. 5 方案一 ........................................... 5 方案二 ........................................... 5 ..................................... 6 ............................................. 7 ................................. 8 ............................................. 8 單片機(jī)的選擇 ..................................... 8 復(fù)位電路 ........................................ 12 顯示電路 ........................................... 12 溫度傳感器 ......................................... 13 DS18B20 的使用方法 ............................... 14 DS18B20 內(nèi)部結(jié)構(gòu)框圖 ............................. 15 DS18B20 控制方法 ................................ 18 溫度的采集 ...................................... 18 第三章 檢測(cè)與調(diào)試 ..................................... 19 檢測(cè)方法 .......................................... 19 精度調(diào)試 .......................................... 20 第四章 總結(jié)與心得 ..................................... 23 參考文獻(xiàn) ............................................... 25 致謝 ...................................................