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南京工程学院毕业设计（论文）

目录

第一章 绪论 .......................................................................................................................................... 2

1.1 引言 .......................................................................................................................................... 1 1.2 选题背景与意义 .................................................................................................................... 1 1.3 研究现状 ................................................................................................................................. 2 1.4 论文主要研究内容 ................................................................................................................ 2 1.5 主要章节安排 ........................................................................................................................ 3 第二章 开发工具的介绍 .................................................................................................................... 4

2.1 Proteus的功能 ........................................................................................................................ 4

2.1.1 Proteus的功能简述 .................................................................................................... 4 2.1.2 资源丰富 ...................................................................................................................... 5 2.1.3电路仿真 ....................................................................................................................... 5 2.2 ADS1.2 ...................................................................................................................................... 6

2.2.1 ADS种类 ......................................................................................................................... 6 2.2.2 软件组成......................................................................................................................... 6

第三章 软硬件介绍 ............................................................................................................................. 8

3.1 ARM .......................................................................................................................................... 8

3.1.1 ARM简介 ..................................................................................................................... 8 3.1.2 ARM7 ............................................................................................................................. 8 3.2LPC2124处理器 ...................................................................................................................... 9

3.2.1LPC2124简介 .................................................................................................................. 9 3.2.2 特性 ................................................................................................................................ 9 3.2.3 结构 ................................................................................................................................ 9 3.2.4引脚描述........................................................................................................................ 10 3.3硬件系统的整体结构........................................................................................................... 11

3.3.1硬件系统的设计原则 .................................................................................................... 11 3.3.2系统硬件的整体结构 .................................................................................................... 12 3.3.3 基本硬件组成 ............................................................................................................. 12

第四章 软件设计 ............................................................................................................................... 17

4.1系统软件的整体结构........................................................................................................... 17

4.2.1测控系统........................................................................................................................ 18 4.2.2显示数字功能 ................................................................................................................ 19 4.2.3 A/D转换数据采集程序功能与实现 ......................................................................... 21

第五章 总结与展望 ........................................................................................................................... 25

5.1 全文总结 ............................................................................................................................... 25 5.2后续工作及展望 ................................................................................................................... 25 致谢 ........................................................................................................................................................ 27 参考文献 ............................................................................................................................................... 28 附录 ........................................................................................................................................................ 29

南京工程学院毕业设计（论文）

摘要

温度的测量和控制在工业生产中有广泛的应用，尤其在石油、化工、电力、冶金等工业领域中，对温度的测量和监控是非常重要的一个环节，温度参数是工业控制中的一项重要的指标。

本文主要研究了基于ARM7架构的嵌入式系统对于温度控制的应用，它基于ARM7 内核的 LPC2124, 以DS1820采集温度信号, 通过RWB 温度变送器和 A/D 转换获得实际温度值, 同时通过 LCD 实时显示; 此温度控制系统应用于热电仪, 实际应用表明, 系统稳定、可靠, 满足了热电仪的温度控制要求。

关键词：ARM；Proteus；嵌入式系统；温度控制系统

南京工程学院毕业设计（论文）

Abstract

Measurement and control of temperature is widely used in industrial production, especially in the petroleum, chemical, electric power, metallurgy and other industrial fields, measurement and monitoring of the temperature is a very important link, the temperature parameter is an important index in industrial control.

This paper mainly studies the ARM7 based embedded system for the application of temperature control based on ARM7, which based on the LPC2124 kernel, the DS1820 collecting temperature signal, to obtain the actual temperature value through the RWB temperature transmitter and A/D conversion, at the same time through the LCD real time display; This paper introduces the principle, the system implementation process, gives some application circuits. This temperature control system used in the power system, the practical application shows that the system is stable and reliable, meet, the thermoelectric instrument temperature control requirements.

Key words： ARM；Proteus；Embedded system；Temperature control system