摘要:温度是基本的环境参数之一。在生产和生活各方面对于温度测量都有重大意义。例如化工行业的炼油环节，钢铁行业的烧结，炼铁环节，食品行业的食物生产加工环节。所以，对温度进行实时测量和控制具有很强的必要性和重要性。70218

笔者在研究中把测量的温度通过LCD显示，进而建立起单片机的温度测量和控制体系。该系统的运作原理是利用温度传感器的芯片，在单片机上显示出来，并且进行处理，对测量的值进行实时显示。论文论述的对象是ATMEL 公司，框架基础则是AT89C51单片机，对温度进行实时测量和处理，与此同时，笔者对软件的特点和设计进行了总结，程序的运作和软件的设计也都被包含在内。硬件结构的构造和运作原理也在文章中被提及。以AT89c51搭建的系统的特点就是实用性强，难度低，测量的精确度和效率都能得到提升。

毕业论文关键词： AT89C51;LCD;DS18b20;温度控制

Design of the Temperature acquisition instrument Based on Proteus

ABSTRACT:Temperature is one of the basic environmental parameters. It is of great significance to temperature measurement in all aspects of production and life. For example, refining links in the chemical industry, sintering of iron and steel industry, iron smelting links, food production and processing links in the food industry. Therefore, it is of great significance to study the methods of temperature measurement and control. 

The design is realized by SCM temperature measurement and control system, through the LCD display the measured temperature. The system uses a temperature sensor DS18b20 chip, processing and display through the micro-controller, real-time display of the measured value. The article introduced the ATMEL company's AT89C51 series single-chip temperature measurement and control system and real-time display system design based on the hardware structure and its principle, design points and corresponding software are analyzed, including the realization of the software design process and program. The system structure is simple and practical, and the measurement accuracy and efficiency are improved. 

Key words: AT89c51;LCD;DS18b20;temperature

目  录

第1章 绪 论 1

1.1 课题的价值 1

1.2 最新的发展趋势 1

1.3 系统的特征和功能 2

1.3.1 系统的主要性能指标 2

1.3.2 主要工作任务 2

1.4 方案论证 2

第2章 工具简介 4

2.1 C语言 4

2.1.1 C语言的优点 4

2.1.2 C语言的缺点 4

2.2 Proteus简介 4

2.3 Keil C51编译器简介 5

2.3.1 8051开发工具 5

2.3.2 uVision2集成开发环境 5

第3章 硬件设计 7

3.1 芯片介绍 7

3.1.1 单片机——AT89C51 7

3.1.2 LCD显示——LCD1604 9

3.1.4温度传感器DS18B20 15

3.2 模块功能介绍 18

3.2.1 复位电路部分 18

3.2.3 DS18B20传感器模块