《基于AT89S52单片机的恒温控制系统》-毕业论文.doc

xxxxxxxxxx 本科生毕业论文（设计） 题 目：基于单片机的温度控制系统 学生姓名：xx 指导教师：xx 二级学院：xx 系 别： 专 业：xx 年 级：xx级 学 号：xxxxxx 完成日期：20xx年x月xx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AT89S52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。 关键词: 单片机应用；温度采集控制；DS18B20应用； Temperature control system used single chip computer 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 AT89S52 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 lower comparisons this judgment whether to activate the relay to open the equipment. The design also includes commonly used digital display and control state lights commonly used circuit, making the whole design more complete, more flexible. The design has been applied to someone, to someone intelligent temperature control. Key word: Microcomputer applications; temperature acquisition and control; DS18B20 application 目录 TOC \o 1-2 \u 摘要 PAGEREF _Toc26478