【正文】 .............................1 課題的背景與意義 ..............................................................................................1 國內(nèi)外研究狀況及相關(guān)領(lǐng)域中已有的研究成果 ..............................................1 方案的選擇 ..........................................................................................................2 信號采集與放大模塊 ....................................................................................2 模數(shù)轉(zhuǎn)換模塊 ................................................................................................3 單片機(jī)模塊 ....................................................................................................3 無線發(fā)射模塊 ................................................................................................4 顯示模塊 ........................................................................................................4 設(shè)計(jì)要求 ..............................................................................................................4 本章小結(jié) ..............................................................................................................4第二章 硬件系統(tǒng)的設(shè)計(jì)與實(shí)現(xiàn) ..............................................................5 單片機(jī)模塊 ..........................................................................................................6 AT89S52 簡介 ...............................................................................................6 模塊原理圖 ....................................................................................................8 溫度采集與放大模塊 ..........................................................................................9 AD590 簡介 ...................................................................................................9 AD590 的工作原理 .....................................................................................10 溫度采集電路 ..............................................................................................11 放大電路 ......................................................................................................12 信號電壓調(diào)整電路 ......................................................................................13 模數(shù)轉(zhuǎn)換模塊 ....................................................................................................15 無線發(fā)射模塊 ....................................................................................................16 引腳功能及描述 ..........................................................................................17 工作模式 ......................................................................................................18 工作原理 ......................................................................................................18 液晶顯示模塊 ....................................................................................................20 LCD1602 管腳介紹 .....................................................................................20 LCD1602 的指令說明及時(shí)序 .....................................................................21 電源模塊 ............................................................................................................22 本章小結(jié) ............................................................................................................23第三章 軟件系統(tǒng)的設(shè)計(jì)與實(shí)現(xiàn) ............................................................24 軟件的總體設(shè)計(jì) ................................................................................................24 發(fā)送端軟件總體設(shè)計(jì) ..................................................................................24 接收端軟件總體設(shè)計(jì) ..................................................................................25 各模塊軟件設(shè)計(jì) ................................................................................................26 模數(shù)轉(zhuǎn)換 ......................................................................................................26 LCD1602 液晶顯示部分 .............................................................................28 無線發(fā)射模塊軟件設(shè)計(jì) ..............................................................................29 無線接收模塊軟件設(shè)計(jì) ..............................................................................30 本章小結(jié) ............................................................................................................30第四章 系統(tǒng)的調(diào)試及實(shí)驗(yàn)結(jié)果 ............................................................31 調(diào)試步驟 ............................................................................................................31 硬件電路調(diào)試 ..............................................................................................31 軟件調(diào)試 ......................................................................................................32 實(shí)驗(yàn)結(jié)果 ............................................................................................................33 本章小結(jié) ............................................................................................................35第五章 總 結(jié) ........................................................................................36參考文獻(xiàn) ..................................................................................................38致 謝 ......................................................................................................39附 錄 ......................................................................................................40第一章 緒 論 課題的背景與意義溫度是工業(yè)、農(nóng)業(yè)生產(chǎn)中常見的和最基本的參數(shù)之一。AD590。關(guān)鍵字：AT89S52；溫度測量；AD590；nRF24L01 AbstractTemperature as one of the most mon and the most basic parameters in industrial, agricultural production, We often need to detect and monitor temperature, use microputer for temperature acquisition and processing, data storage and realtime control to improve the work efficiency, and ensure the quality of products .This article describes the design of a high precision temperature measure ment system of short distance wireless transmission based on the AT89S52. After data processing, analog signals acquired by the temperature sensor AD590 of the sender is