摘要随着科学技术的进步和人民生活水平的提高,恒温箱的发展要求也提高了。生产方面需要结构简单,生活方面要满足要求和操作简单。现在,在实验室的环境温度要求提高精度,医用疫苗的恒温,和奶瓶恒温也需要通过温度控制。这里用控制恒温箱举例,提供它的设计思路和计划,也可以进行仿真模拟。39201
通过硬件的运行,得出本设计的实验效果很好。它有很多的优点,操作简单,小型化便于携带,设计的成本低等等。设计中的温度传感器采用的是DS18B20。它结构简单,模数转换是在内部集成,使测温方面简单高效。设计中采用的51单片机功能多,控制简单并且易于负载,所以将80C51单片机的硬件电路设计为温度控制的核心部分。此外,其中的温度控制部分分为加热和降温2个部分,利用程序设计控制单片机使温度在一定范围内变化。本设计的成果可以运用于小型的控制系统中,成本低,而且能够实现控制的自动,实现自我调节。
毕业论文关键字: 温度传感器 80C51单片机 恒温箱
Abstract With the advancement of science and technology and people's living standards improve the level required to improve development incubator. Production requires a simple structure, aspects of life to meet the requirements and simple operation. Now, in the laboratory ambient temperature for greater precision, thermostatic medical vaccines and bottles also need constant temperature control. Here with control thermostat, for example, offers its design ideas and programs can also be simulated.
Run by hardware, the design of the experimental results obtained very good. It has many advantages, simple operation, small size and portability, low cost, design and so on. Design temperature sensor uses DS18B20. It is simple, analog to digital conversion is integrated, so that temperature aspects of simple and efficient. 51 single-chip design used in multi-functional, simple control and easy to load, so the 80C51 microcontroller hardware circuit design as the core part of the temperature control. In addition, where the temperature control part is pided into two parts of heating and cooling, the use of single-chip programming control the temperature within a certain range. The outcome of this design can be applied to small-scale control systems, low cost, and can realize automatic control, to achieve self-regulation.
Key words: The Temperature Sensor 80C51 Incubator
目 录
摘 要 I
Abstract II
1 概论 1
1.1 课题研究背景及意义 1
1.2 国内外研究现状 1
1.3 本文主要工作 2
2 恒温硬件控制设计 3
2.1 主控制系统 3
2.2 温度传感器选择 4
2.2.1 温测元件介绍及比较选择 4
2.2.2 DS18B20数字式温度传感器 5
2.3 键盘设置电路 7
2.4 数码管显示 7
2.5 蜂鸣器和LED灯 8
2.6 硬件部分总结 9
3 控制系统 11
3.1 系统的主程序设计 11
3.2 功能实现模块设计 12
3.2.1 温度传感器DS18B20设计 12
3.2.2 中断控制设计 14
3.2.3 键盘控制设计 14
3.2.4 PID控制程序设计 15
3.3 运算控制模块设计 17
3.4 软件部分总结 18
4 软硬件调试 19 80C51单片机的恒温箱设计+电路图+程序:http://www.youerw.com/zidonghua/lunwen_39467.html