空调温度控制单元的设计

文档编号:JD566 附外文翻译,开题报告,实习报告,原理图,文档字数:16405,页数:39

摘 要
在科技高速发展的今天，传感器技术得到了显著的进步，应用领域越来越广泛，传感器技术已经成为衡量一个国家科学技术发展水平的重要标志之一。本设计是对空调温度控制单元的设计，主要针对温度的变化进行检测,从而实现对温度的采集、显示和对温度的控制。系统采用AT89S51为中央处理器，传感器采用的是集成传感器，其核心元件为AD590.温度的变化通过传感器转变为电压信号放大后通过AD转换输入单片机中，与设定值进行比较，超出或低于设计温度时进行制冷或加热。根据实现功能和硬件设计对软件进行了编写，并对软件进行了运行、调试和修改。本设计实用性强，结构简单、造价低廉。

关键词  传感器    空调    温度控制单元    AD590   

Title   Design of Air-Conditioning Temperature Control Modules                                             
                                                           

Abstract

With the rapid development of technology today, sensor technology has been significant progress, and more and more extensive applications, sensor technology has become one of the important symbols to measure the level of a national science and technology development. To achieve the collection, display and temperature control of temperature, the design of air-conditioning temperature control unit designed mainly for detecting the change in temperature. AT89S51 system used for microprocessors, sensors used in the integrated sensor, the core components is the AD590. The sensor get the changes of temperature and change the temperature into a voltage signal which amplified by AD Conversions SCM, compared with the settings,  when the temperature in excess or Below the design temperature the  temperature control modules will cooling or heating. I design software according to achieving function and hardware and get software to run, debug and modify. The design is practical, simple,   and low cost.

Keywords：  Sensors     Air conditioning    Temperature Control Unit    AD590

目  录

1  引言 …………………………………………………………………………………1
1.1  本课题的意义 ……………………………………………………………………1
1.2  发展现况及发展趋势 ……………………………………………………………1
2  硬件设计 ……………………………………………………………………………4
2.1  硬件框图 …………………………………………………………………………4
2.2  AT89S51的简介 …………………………………………………………………4
2.3  温度传感器 ………………………………………………………………………6
2.4  A/D转换电路 ……………………………………………………………………9
2.5  显示电路 …………………………………………………………………………12
2.6  驱动控制电路  ……………………………………………………………………15
2.7  键盘电路  …………………………………………………………………………18
2.8  电源电路  …………………………………………………………………………20
3  软件设计 …………………………………………………………………………22
3.1  主程序流程图 …………………………………………………………………22
3.2  A/D转换子程序流程图  …………………………………………………………22
3.3  键盘子程序流程图  ………………………………………………………………23
3.4  键盘子程序流程图  ………………………………………………………………24
结论  ……………………………………………………………………………………26
致谢  ……………………………………………………………………………………27
参考文献 ………………………………………………………………………………28
附录A程序清单…………………………………………………………………………30
附录B 硬件图…………………………………………………………………………39

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