【正文】 ....................................................................II 第一章 引 言 ............................................................................................................................... 1 研究背景 ....................................................................................................................... 1 III 溫度巡檢儀發(fā)展概況 ...................................................................................................... 1 研究意義 ....................................................................................................................... 1 第二章 EDA技術(shù)介紹 .................................................................................................................. 2 電子設(shè)計自動化 （ EDA） 技術(shù)概述 ................................................................................. 2 電子設(shè)計自動化 （ EDA） 技術(shù) ............................................................................ 2 可編程邏輯門陳列（ FPGA） .............................................................................. 3 EDA設(shè)計流程 ............................................................................................................... 4 設(shè)計輸入 ............................................................................................................ 5 綜合 ................................................................................................................... 5 適配 ................................................................................................................... 6 時序仿真 ............................................................................................................ 6 編程下載 ............................................................................................................ 6 硬件測試 ............................................................................................................ 6 VHDL硬件描述語言介紹 ................................................................................................. 7 第三章 溫度巡檢儀總體方案設(shè)計 ................................................................................................. 7 基于單片機的溫度巡檢儀 ............................................................................................... 7 基于虛擬儀器的溫度巡檢儀 ........................................................................................... 9 總體方案選擇與設(shè)計 ...................................................................................................... 9 第四章 總體設(shè)計方案介紹 ...........................................................................................................11 基于 LPM_ROM的熱電偶溫度巡檢儀的設(shè)計 .....................................................................11 系統(tǒng)硬件設(shè)計 ....................................................................................................11 系統(tǒng)軟件設(shè)計 ................................................................................................... 18 基于 MAX6675的熱電偶溫度巡檢儀設(shè)計 ........................................................................ 28 系統(tǒng)硬件設(shè)計 ................................................................................................... 28 系統(tǒng)軟件設(shè)計 ................................................................................................... 32 第六章 總結(jié) ............................................................................................................................... 34 參考文獻 .................................................................................................................................... 35 附錄 A ........................................................................................................................................ 37 附錄 B ........................................................................................................................................ 38 附錄 C ........................................................................................................................................ 39 IV 附錄 D ........................................................................................................................................ 40 致謝 ........................................................................................................................................... 41 1 第一章 引 言 研究背景 隨著現(xiàn)代科學(xué)技術(shù)的發(fā)展， 在現(xiàn)代化的工業(yè)生產(chǎn)中，電流、電壓、溫度、壓力、流量、流速和開關(guān)量都是常用的主要被控參數(shù)。 關(guān)鍵詞： 熱電偶 ； 溫度巡檢儀 ； FPGA； FPGAbased thermocouple temperature data logging devices design II Abstract With the development of science and technology， The field of industrial control needs for realtime field data acquisition and control, for example, power plants, iron and steel plant, chemical industry production of large amounts of data, they also need to conduct onsite collection, and the temperature acquisition is an extremely important part of them. The topics needs the temperature of the technical requirements， I design a 4way Thermocouple Temperature Detector. The instrument can detect the four test points temperature， Can be widely used in industrial production and people39。 該裝置不僅具有精度高、功耗低的優(yōu)點，還可以及時顯示，操作使用方便。題 目： 基于 FPGA 的熱電偶溫度巡檢儀的設(shè)計 I 基于 FPGA的熱電偶溫度巡檢儀的設(shè)計 摘要 隨著現(xiàn)代控制技術(shù)的發(fā)展，在工業(yè)控制領(lǐng)域需要對現(xiàn)場數(shù)據(jù)進行實時采集、控制，例如在發(fā)電廠、鋼鐵廠、化工領(lǐng)域的生產(chǎn)中都需要對大量數(shù)據(jù)進行現(xiàn)場采集，而溫度采集又是其中極為重要的部分。 總體設(shè)計 采用 兩種方案。s daily life. The device not only has high accuracy and the advantages of low power consumption, but also shows in time that the operation is easy to use. I use two types of programs to achieve. The first program: first of all, thermocouple is selected by multichannel selector, then the signal is passed by cold junction pensation and amplification processing, then it passed in A / D conversion, After it be processed by FPGA chip and displayed in the LED, finally. The second program: the signal, outputted by thermocouple, directly be passed into the MAX6675 IC， and processed by FPGA chip and displayed in the LED. The software