文档介绍：毕业设计说明书
课题名称: 测温及超声波测距
学生姓名
专业电子信息工程
班级电信0902
时间 ~
指导教师
电子信息与自动化工程系
摘要
随着现代科学技术的发展,人们逐渐了解到,超声波的穿透力很强不易损坏物体,而且它在两万赫兹以上,不会影响到人们的正常工作,并且他的传播速度快。由于超声波具有这样大的优点,所以人们对超声波的利用率越来也高。从大到工业体系的探伤,小到测距和金属表面清尘,超声波几乎无处不在的伴随我们的生活。
本设计是以AT89C51单片机为核心的低成本、高精度、微型化数字显示超声波测距仪。整个电路采用模块化设计,由单片机控制模块,超声波发射模块,超声波接收模块和数据显示模块组成。软件部分由主程序、预置子程序、发射子程序、接收子程序、显示子程序组成。各探头的信号经单片机综合分析处理,实现超声波测距仪的各种功能。在此基础上设计了系统的总体方案,最后通过硬件和软件实现了各个功能模块。相关部分附有硬件电路图、程序流程图。
关键词:AT89C51;超声波;测距;测温
Abstract
With the development of modern science and technology, people gradually understanding that the ultrasonic wave rating power is very strong .The ultrasonic wave is not easy to damage the object,morover it above 20KHZ and affect people’s nomal work. So the using of Ultrasonic wave is more and more frequent. From the large scale flaw detection of the industrial system to the measuring distance and clearing of the metal surface , the ultrasonic wave is useful in our every daily life .
The ultrasonic distance measurer design with digital display functional module used AT89C52 MCU as the ponent,of which carries the characteristics with low-cost,high-precision and whole circuit used modular design,it includes the MCU control module,ultrasonic transmit module,ultrasonic receive module and the Data display the software design part,it contains the main program,the presets subroutine,the launch subroutine,the receiving subroutine and the display prehensive analysis processing of the AT89C51 MCU, The signal of each detector can realizing the functions of ultrasonic on these,designed the overall scheme of the the finally,through the hardware and software realize the whole the relevant parts have the hardware circuit diagrams and program flow charts on the appendix.
Key words:AT89S51;Silent Wave;Measure Distance;Measure Temperature
目录
摘要 II
ABSTRACT III
1 前言 2
2 设计思路和设计原理 2
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