文档介绍：基于单片机的温度监控系统
摘要:温度控制在各个行业运用广泛,在化工、冶金、医药、食品和实验室等众多领域里都有涉及。温度的高低直接影响到产品的质量及使用寿命,因此在实际应用中对温度都要求严格控制,对于温度的精确度和稳定性均有较高的要求。随着控制理论和电子技术的发展,工业控制器的适应能力增强和高度智能化正逐步成为现实。其中以单片机为核心对温度进行控制简单直接、精度高、控制灵活、成本低。
本系统是以AT89S52单片机为主控制单元,并采用数字温度传感器DS18B20采集现场温度数据而设计的远程温度控制系统。该系统具有对监控对象温度的实时采集并显示;按键设置上、下限温度值;超出设定温度范围,自动报警并能通过外部设备控制温度等功能。该系统结构新颖,电路简单,控制方便。
关键词:单片机; DS18B20; 温度检测; 温度控制
Temperature Monitoring System Based on Single-chip puter
Abstract:Temperature control is used widely in industry and chemical, metallurgy, medicine, food and laboratory, many areas are involved. the temperature of a direct impact on the quality of the product and service life, so in actual usage is strictly control the temperature required for the accuracy and stability are higher. the theory and electronic control of technology and industrial control of the ability to enhance and highly intelligent is gradually ing a reality. one of a monolithic integrated circuits to control the temperature a straightforward, high precision, flexibility and control the costs were low.
This system is mainly controlled by at89s52 monolithic integrated circuits, and the temperature sensors ds18b20 the digital data collected from the design of a remote control system. the temperature of the system for monitoring the object of the collection and display the temperature of the real-time ; button sets the minimum temperature and is beyond the scope and ; set the alarm and to the peripheral devices under control the temperature and other features. The system structure and simple, and the control circuit for
Key words:Microcontroller;TDS18B20;Tmeasure; Temperature control
目录
第1章绪论 1
概述 1
温度测控技术的发展与现状 1
定值开关控温法 2
PID线性控温法 3
智能温度控制法 3
系统总体设计方案 4
系统性能要求及特点 4
系统硬件方案分析 5
系统软件方案分析 6
第2章系统元件简介 7
单片机简介 7
单片机 7
单片机的应用领域 8
AT89S52简介 9
DS18B20简介 11
DS18B20的性能特点 11
DS18B20产品的特点 11
DS18B20引脚功能介绍及内部结构 11
DS18B20测温原理 14
2.