【正文】 ure measurement of the specific circumstances, especially in some of the harsh industrial space and outdoor space, where the measurement is unrealistic. So the development and design of wireless temperature measuring system is very important. Many wireless temperature measurement systems have been developed so far, however, high cost stops the systems wildly applied in our daily life. In the actual measurement process it is necessary to ensure the stability of the system, the realtime and the low power consumption. So the design of a low power and low cost wireless temperature measuring system is of great significance. Some temperature sensors, model DS18B20, are controlled by SCM, type STC89C52. These devices constitute the measurement and control system. Using simple wireless munication protocol, a high reliability, low power consumption and low cost system is designed, which can realize remote detection of temperature. Low cost, low power consumption, realtime and remote control are focuses of this design. The wireless transmission module used in this system is NRF24L01. This system has advantages of simple structure, reliable performance, low power consumption and low cost, providing a novel scheme, namely using wireless sensors. Keywords: MCS51r, wireless temperature measurement, Wireless transmission module 基于 51 單片機(jī)的無(wú)線(xiàn)測(cè)溫系統(tǒng)的設(shè)計(jì) III 目 錄 第 1 章 緒 論 .............................................................................................................. 1 論文研究主要內(nèi)容 ............................................................................................ 1 國(guó)內(nèi)外現(xiàn)狀 ........................................................................................................ 3 第 2 章 關(guān)鍵技術(shù)介紹 .................................................................................................. 5 單片機(jī)最小系統(tǒng)介紹 ........................................................................................ 5 無(wú)線(xiàn)收發(fā)模塊 .................................................................................................... 5 數(shù) 碼管顯示電路 ................................................................................................ 5 電源模塊電路 .................................................................................................... 6 第 3 章 系統(tǒng)分析 .......................................................................................................... 7 構(gòu)架概述 ............................................................................................................ 7 功能構(gòu)架 .................................................................................................. 7 模塊需求描述 .......................................................................................... 7 系統(tǒng)開(kāi)發(fā)環(huán)境 .................................................................................................... 8 系統(tǒng)任務(wù)的可行性分析 .................................................................................... 8 技術(shù)可行性 .............................................................................................. 8 系統(tǒng)安全性分析 ...................................................................................... 9 第 4 章 系統(tǒng)設(shè)計(jì) ........................................................................................................ 10 構(gòu)架概述 .......................................................................................................... 10 系統(tǒng)的功能結(jié)構(gòu)設(shè)計(jì) ...................................................................................... 10 第 5 章 系統(tǒng)實(shí)現(xiàn) ........................................................................................................ 12 軟件實(shí)現(xiàn) .......................................................................................................... 12 主函數(shù)模塊功能介紹 ............................................................................ 12 發(fā)送程序功能介紹 ................................................................................ 12 接收程序功能介紹 ................................................................................ 12 函數(shù)實(shí)現(xiàn) ................................................................................................ 13 硬件實(shí)現(xiàn) .......................................................................................................... 16 單片機(jī)接口及功能介紹 ........................................................................ 16 晶振電路設(shè)計(jì) ........................................................................................ 16 報(bào)警電路設(shè)計(jì) ........................................................................................ 17 溫度檢測(cè)電路設(shè)計(jì) ................................................................................ 18 數(shù)碼管驅(qū)動(dòng)電路設(shè)計(jì) ............................................................................ 18 NRF24L01 .............................................................................................. 21 基于 51 單片機(jī)的無(wú)線(xiàn)測(cè)溫系統(tǒng)的設(shè)計(jì) IV 第 6 章 系統(tǒng)測(cè)試 ........................................................................................................ 24 測(cè)試方案 .......................................................................................................... 24 讀取數(shù)據(jù)并對(duì)比 .............................................................................................. 24 系統(tǒng)運(yùn)行結(jié)果 ................................................................................................... 24 結(jié) 論 ............................................................................................................................ 26 參 考 文 獻(xiàn) .................................................................................................................. 27 致 謝 ........................................................................................................................ 28 附錄 1............................................................................................