基于单片机的鸡雏恒温孵化器的设计

此份论文附开题报告,调研表,任务书,论文,字数11612,页数:43:,论文编号:JD124  

摘 要
随着电究所子技术的发展，微处理器、集成电路不断更新、发展，温度是工业生产和自动控制中最常见的工艺参数之一，任何物理变化和化学变化的过程都与温度密切相关，因此，在生产过程中常需对温度进行检测和监控。采用单片机进行温度检测、数值显示和数据的存储，效率高，性能稳定，还可以实现实时控制等技术要求，在工业生产中应用越来越广泛。
单片机在电子产品中的应用已经越来越广泛，在很多的电子产品中也用到了温度检测和温度控制。随着温度控制器应用范围的日益广泛和多样，各种适用于不同场合的温度控制器应运而生。
随着人们生活水平的不断提高,单片机控制无疑是人们追求的目标之一，它所给人带来的方便也是不可否定的，其中鸡雏恒温孵化器就是一个典型的例子，本设计所介绍的鸡雏恒温孵化器，具有读数方便，测温范围广，测温准确，其输出温度采用数字显示，主要用于对测温比较准确的场所，或科研实验室使用，该设计控制器使用单片机AT89C51，测温传感器使用DS18B20，用液晶LCD1602实现温度显示。

关键词：单片机  温度传感器  LCD液晶屏  恒温 

Abstract
 investigates the sub-technical development along with the electricity, the microprocessor, the integrated circuit renews, the development, the temperature is unceasingly in the industrial production and the automatic control one of most common technological parameters, any physical change and chemical change's process closely is related with the temperature, therefore, Chang Xu carries on the examination and the monitoring in the production process to the temperature. Uses the monolithic integrated circuit to carry on the temperature examination, the value demonstration and the data memory, the efficiency is high, stable property, but may also realize specifications and so on real-time control, applies in the industrial production is getting more and more widespread. the monolithic integrated circuit's was already getting more and more widespread in electronic products application, also used the temperature examination and the temperature control in many electronic products. Is day by day widespread along with the temperature controller application scope and is diverse, each kind is suitable in the different situation temperature controller arises at the historic moment. along with the people living standard's unceasing enhancement, the monolithic integrated circuit control is one which of without doubt goals the people pursue, it the convenience which brings to the human also not whether to decide, the chicken young constant temperature hatchibator is a typical example, this design introduced the chicken young constant temperature hatchibator, has the reading to be convenient, the temperature measurement scope is broad, the temperature measurement is accurate, its output temperature uses the digit to demonstrate, mainly uses to the temperature measurement quite accurate place, or the scientific research laboratory use, this design controller use monolithic integrated circuit AT89C51, the temperature measurement sensor uses DS18B20, realizes the temperature demonstration with liquid crystal LCD1602.

 key word: Monolithic integrated circuit temperature sensor LCD liquid crystal box constant temperature

目 录
第1章 绪论...................................................................1
1.1鸡雏恒温孵化器设计目的.....................................................1
1.2鸡雏恒温孵化器完成的功能 ..................................................1
第2章总体方案设计 ...........................................................2
第3章硬件设计 ...............................................................4
3.1 温度采集电路..............................................................4
3.1.1 DS18B20简介 ............................................................4
3.1.2 DS18B20接口电路.........................................................7
3.2单片机控制电路 ............................................................7
3.2.1 单片机简介 .............................................................7
3.2.2 时钟电路和复位电路......................................................8
3.3显示电路 .................................................................10
3.4 报警与控制电路 ..........................................................11
第4章  软件设计..............................................................12
4.1主程序....................................................................12
4.2 温度采集子程序 ..........................................................12
4.3数据处理子程序 ...........................................................16
4.4 1602C显示子程序..........................................................17
4.5 输出驱动子程序 ..........................................................19
第5章安装调试与结果 ........................................................21
5.1 安装调试 ............................................................... 21
5.2 结果显示...............................................................  21
第6章 总结 ................................................................ 23
致谢 ...................................................................... 24
参考文献 ................................................................... 25
附录1原理图 ................................................................ 26
附录2 PCB图 ................................................................ 27
附录3 源程序 ............................................................... 28
附录4 实物图...............................................................  42