优秀毕业设计精品]基于AT89C51单片机系统的研究.doc

本科生毕业设计(论文)
基于AT89C51单片机系统的研究
学院、系:
电气与信息工程学院
专业:
电子信息工程
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职称教授

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年6月

摘要
湿度检测在工业、农业、国防等行业有着广泛的应用。利用单片机技术的湿度检测系统以其体积小,可靠性高而被广泛采用。本文对湿度检测系统进行了分析设计。首先,对湿度检测技术的应用领域和发展状况做了简单的介绍,同时,列举了目前湿度检测所常用方法以及各自所具有的特点。本文重点在于对该系统的硬件和软件设计。在硬件设计过程中,详细介绍了各部分电路的功能和特点。接下来,对系统中所用的湿度传感器HM1500和A/D转换芯片TLC1549作了简单的介绍。在软件设计过程中,绘制了各个程序模块的流程图,详细介绍了各个模块的作用。经过对程序反复的修改,完善了软件系统。最后,完成了对整个系统的设计。本系统具有灵敏度高、反映时间短等特点,并且具有智能化、可编程、小型便携等优点,相信本系统具有广泛的应用领域。
关键词:单片机,湿度检测,硬件系统,软件系统
ABSTRACT
The humidity examination which is widely used in industry, agriculture, national defense and so on .the humidity examination which is widely used because that the system which uses microcontroller technology is volume small and reliability. This article has carried on the analysis design to the humidity examination system. First, the application and development condition of the humidity examination technology is made a simple introduction. And then, the humidity examination monly used method which has enumerated the characteristic as well as each one .The point of the article is the design of the hardware and software. In the process of hardware designing, the function and the characteristic of each part of electric circuits which has made a simple introduction in detail. Meanwhile, the humidity sensor HM1500 and the chip of the A/D transformation to the system in TLC1549 have been made the simple introduction. In the process of software designing, I have drawn up each program module flow chart, and introduced each module function in detail. Then to the procedure repeatedly revision, it has been consummated the software system. Finally, I pleted the over all system designing. This system have the characteristic of sensitivity high and the reflection time is short, and so on .It has the intellectualization, and programmable and small, then takes along short, and so on. It believed that this system has the widespread application .
Keywords: MCU, humidity exami