单片机的温度控制系统论文.doc

题目基于单片机的温度控制系统
英文题目 Temperature control system based
on single chip
学生姓名:
学号:
专业:
指导老师: 职称
系别: 机械与电子工程系
2012年5月1日
摘要
温度是日常生活中无时不在的物理量,温度的控制在各个领域都有积极的意义。很多行业中都有大量的用电加热设备,如用于热处理的加热炉,用于融化金属的坩锅电阻炉及各种不同用途的温度箱等,采用单片机对它们进行控制不仅具有控制方便、简单、灵活性大等特点,而且还可以大幅度提高被控温度的技术指标,从而能够大大提高产品的质量。因此,智能化温度控制技术正被广泛地采用。
本温度设计采用现在流行的AT89S51单片机,配以DS18B20数字温度传感器,该温度传感器可自行设置温度上下限。单片机将检测到的温度信号与输入的温度上、下限进行比较,由此作出判断是否启动继电器以开启设备。
本设计还加入了常用的数码管显示及状态灯显示灯常用电路,使得整个设计更加完整,更加灵活。
关键字:单片机温度控制继电器

ABSTRACT
The temperature is constantly in the daily life of physical and temperature controls in various fields have a positive meaning. A lot of businesses have a lot of power heating equipment, such as that used for the heat treatment furnace, for melting metal crucible resistance heaters and the various uses of temperature bins, SCM using their right to control not only easy to control, simple, such as the characteristics of flexibility, but can also significantly increase the temperature was charged with the technical indicators, which can greatly enhance the quality of the products. Therefore, intelligent temperature control technology is being widely adopted.
The temperature was designed with the now popular AT89S51 SCM, and with DS18B20 digital temperature sensor, The temperature sensor can set up their own temperature collars. SCM will detect that the temperature of the input signal and temperature, the parisons this judgment whether to activate the relay to open the equipment.
The design also monly used digital display and control state monly used circuit, making the whole design plete, more flexible.
Key words: Single chip puter Temperature control SSR
目录
绪论 1
1
1
设计具体任务及要求 2
2. 温度控制原理的总体设计 3
单片机芯片的选择方案和论证 3
显示模块选择方案和论证 3
温度传感器设计的选择方案和论证 4
控制按键的选择 4
3. 系统硬件设计 5
4. 温度控制系统软件的设计 8
8
系统软件设计整体思路 8
8
主程序 9
温度子程序 10
复位、应答子程序 11
写入子程序 14
系统总的流程图 16
5. 温度控制系统调试与设计 17
5