基于單片機(jī)的數(shù)字顯示溫度系統(tǒng)畢業(yè)設(shè)計(jì)論文

電子機(jī)電論文編號(hào):JD039    字?jǐn)?shù):7425,頁(yè)數(shù):29

目錄

第1章智能溫度測(cè)量裝置組成和工作原理.............................................  2
第1.1節(jié)智能溫度測(cè)量裝置的組成...................................................  2
第1.2節(jié)智能溫度測(cè)量裝置的工作原理 ................................................3
第2章電路設(shè)計(jì).................................................................... 4
第2.1節(jié)單總線數(shù)字溫度傳感器DS18B20 .............................................. 4
2.1.1 DS18B20引腳分布 ............................................................ 4
2.1.2 DS18B20的內(nèi)部結(jié)構(gòu) .......................................................... 5
2.1.3 DS18B20溫度測(cè)量原理................................................... ..... 5
第2.2節(jié) 89C2051與DS18B20接口技術(shù) ................................................. 9
2.2.1 89C2051單片機(jī)簡(jiǎn)介 .......................................................... 9
第2.3節(jié) 89C2051單片機(jī)與液晶顯示器接口技術(shù) ....................................... 14
第3章程序設(shè)計(jì) .................................................................. 18
第3.1節(jié)程序流程圖 .............................................................. 18
3.1.1主程序流程 ................................................................. 18
3.1.2 子程序流程 ................................................................ 18
第3.2節(jié)程序設(shè)計(jì)................................................................  21
結(jié)論 ............................................................................ 24
參考文獻(xiàn) ........................................................................ 25
致謝...........................................................................  26

摘要: 溫度是人們生活中一種最基本的環(huán)境參數(shù)，溫度測(cè)量系統(tǒng)的發(fā)展是社會(huì)迫切需要的。智能溫度測(cè)量裝置將廣泛地應(yīng)用于工業(yè)現(xiàn)場(chǎng)、農(nóng)業(yè)生產(chǎn)及我們生活環(huán)境之中。目前常用的溫度測(cè)量系統(tǒng)大多存在兩大缺點(diǎn)：其一，需要大量的連線才能把現(xiàn)場(chǎng)傳感器的信號(hào)送到采集卡上，布線施工麻煩，成本也高；其二，線路上傳送的是模擬信號(hào)，易受干擾和損耗，為了克服這些缺點(diǎn)，一種基于數(shù)字化單總線技術(shù)的系統(tǒng)應(yīng)運(yùn)而生。研究和開(kāi)發(fā)溫度測(cè)量裝置既可為人民生活服務(wù)，也滿足工業(yè)生產(chǎn)的要求。本次設(shè)計(jì)的目的，一方面是工業(yè)現(xiàn)代化的客觀需要，另一方面，也對(duì)于即將要步入社會(huì)的大學(xué)生是一個(gè)有益的嘗試。本設(shè)計(jì)主要利用單總線數(shù)字溫度傳感器DS18B20為測(cè)量器件、以DM-162液晶顯示模塊為顯示器件，89C2051微處理器為控制核心，構(gòu)成了溫度實(shí)時(shí)測(cè)量裝置.
關(guān)鍵詞:單片機(jī) 溫度傳感器 液晶顯示模塊 DS18B20 DM-162

Abstract: The temperature is the people lives one kind of most basic environment parameter, the temperature survey system's development is the social urgent need. The intelligence temperature survey installment widely will apply in the industry scene, the agricultural production and our living conditions. At present the commonly used temperature survey system mostly has two big shortcomings: First, needs the massive segments to be able to deliver the scene sensor's signal in the gathering card, the wiring construction is troublesome, the cost is also high; Second, what on the line transmits is the simulated signal, is disturbed easily and the loss, to overcome these shortcomings, one kind arises at the historic moment based on the digitization single bussing technique's system. The research and the development temperature survey installment already may serve for the lives of the people, also satisfies the industrial production the request. This design goal, on the one hand is the industry modernization objective need, on the other hand, also regarding the university student who soon must march into the society is a beneficial attempt. This design mainly uses single main line digit temperature sensor DS18B20 is surveys the component, take the DM-162 liquid crystal display module as the display device, 89C2051 the microprocessor is the control core, constituted the temperature real-time measurement installment. key word: Monolithic integrated circuit temperature sensor liquid crystal display module DS18B20 DM-162