【正文】 a transmission. In this paper, we design a temperature control system, improve the prehensive use of temperature detection system single chip as micro controller, digital temperature sensor, the temperature control, puts forward a remote temperature monitoring system scheme based on GPRS technology, the scene is realized by using MSP430 MCU and DS18B20 digital temperature sensor temperature data acquisition and processing, again by MG323 GPRS module to achieve remote data transmission and receiving, has features of high precision and good stability. A hardware design based on single chip microputer intelligent temperature control system, with MSP430 single chip microputer as the core, adopting the temperature sensor DS18B20, based on the GPRS wireless munication module, based on the AT mands and data collector, to build a remote temperature data acquisition system, to control the temperature. Keywords Temperature acquisition system。 Single chip microputer。 目 錄 IV 目 錄 摘 要 ........................................................................................................................... II ABSTRACT...................................................................................................................... III 第 1 章 緒論 .................................................................................................................. 1 引言 ...................................................................................................................... 1 課題設(shè)計背景 ...................................................................................................... 1 課題設(shè)計意義 ...................................................................................................... 2 第 2 章 系統(tǒng)主要模塊介紹和硬件設(shè)計 ...................................................................... 3 主控芯片介紹 ...................................................................................................... 3 MSP430F149 芯片概述 ................................................................................ 3 MSP430F149 芯片引腳 ................................................................................ 3 單片機控 制模塊 ........................................................................................... 5 GPRS 模塊介紹 ................................................................................................... 7 GPRS 模塊 B2B 連接器接口 ....................................................................... 7 MG323 電源接口 .......................................................................................... 9 控制信號接口和開 /關(guān)機時序 ................................................................... 10 UART 接口 .................................................................................................. 12 SIM 卡接口 ................................................................................................. 13 溫度傳感器簡介 ................................................................................................ 14 DS18B20 管腳配置和內(nèi)部結(jié)構(gòu) ................................................................. 15 DS18B20 的工作原理 ................................................................................. 16 DS18B20 的硬件設(shè)計 ................................................................................. 18 顯示模塊 ............................................................................................................ 19 液晶驅(qū)動芯片 .............................................................................................. 19 段式液晶顯示器 ......................................................................................... 21 顯示模塊硬件電路設(shè)計 ............................................................................. 21 電源模塊 ............................................................................................................ 22 單片機供 電模塊 ......................................................................................... 22 GPRS 供電模塊 ........................................................................................... 23 第 3 章 系統(tǒng)軟件設(shè)計 ................................................................................................ 25 溫度采集程序設(shè)計 ............................................................................................ 25 GPRS 模塊程序設(shè)計 ......................................................................................... 26 系統(tǒng)總體程序設(shè)計 ............................................................................................ 29 第 4 章 系統(tǒng)硬件電路板的設(shè)計 ................................................................................ 31 系統(tǒng)硬件原理圖 ................................................................................................ 31 系統(tǒng) PCB 圖 ...................................................................................................... 33 硬件制作 ............................................................................................................ 34 硬件調(diào)試 ............................................................................................................ 35 結(jié) 論 .......................................................................................................................... 36 參考文獻(xiàn) ...................................................................................................................... 37 目 錄 V 謝 辭 .......................................................................................................................... 39 附 錄 .......................................................................................................................... 40 附錄 1：系統(tǒng)硬件原理圖 ....................................................................................... 40 附錄 2：顯示模塊程序 ........................................................................................... 42 附錄 3：溫 度傳感器程序 ...............................................................................