基于单片机的超声波测距系统设计

基于单片机的超声波测距系统设计(任务书,开题报告,外文翻译,论文13000字)
摘要
人们的生活在日益发展的超声波测距技术的促进下，越来越便利。超声波测距技术是我们最为常用的电子传感检测技术，可以满足人们对距离测量的各种要求，可以进行实时、精确测量。在一些应用中，超声波测距能够实现精确测量，从而实施实时性控制，所以可以广泛的应用于各种领域。例如，汽车内置倒车防撞系统，潜艇的声发射系统，医疗器械检测系统等本课题的主要内容是在深入研究单片机的基础上，设计并实现超声波测量系统。
应用超声波测距的原理，实现对被测物体距离的测量，本次设计的基于ATMega128的超声波测距系统，能够实现精确测量，从而实施实时性控制。由于论文研究涉及的方面较多，在论文设计过程中，秉着简洁方便的原则，对论文进行“模块化”处理，便于进行硬件设计和软件设计。可以实现超声波测距的各种功能。利用单片机对模块进行脉冲触发，并对模块反馈的高电平持续的时间计时和进行距离的计算，根据距离控制1602 液晶显示屏显示相应的距离，输出报警信号。
超声波测距结合单片机能够实现设备的自动化，能够提高设备的智能化，使数据处理能力和处理效率得到极大的提高，可以用来完成不同的系统应用。具有易于控制、可靠运行、高精度和可读性强等优点，可以在超声波探伤、音波发射系统和倒车雷达系统等领域中发挥着重要的作用。

关键词： ATMega128   超声波测距
 
Abstract
People living under the growing ultrasonic distance measurement technology promotion, more convenient. Ultrasonic distance measurement technology is our most popular electronic sensing technology to meet people's requirements for distance measurement can be performed in real time, accurate measurement. In some applications, ultrasonic distance measurement enables accurate measurement, so as to implement real-time control, it can be widely used in various fields. For example, the built-in auto reverse anti-collision system, the main contents of the submarine acoustic emission systems, medical equipment and other detection systems of this project is based on in-depth research on the microcontroller, ultrasonic measuring system designed and implemented.
ATMega128 ultrasonic ranging system based on this design, it is possible to achieve accurate measurement, so as to implement real-time control. Since the study deals with many aspects of the paper, in the paper the design process, is holding simple and convenient principles for the thesis "modular" process, facilitate hardware and software design. Ultrasonic Ranging can achieve a variety of functions.
Ultrasonic Ranging single-chip combination to achieve automation equipment, intelligent devices can be improved, so that the data processing capacity and processing efficiency has been greatly improved, can be used to perform different system applications. Has an easy control, reliable operation, high accuracy and readability, and other advantages, it can play an important role in the field of ultrasonic testing, sonic transmission system and reversing radar system and the like.

Key words:ATMega128  Silent Wave  Measure Distance

目录
摘要    I
Abstract    II
第1章绪论    1
1.1超声波测距的背景和依据    1
1.2超声波测距的目的和意义    1
1.3超声波测距技术的发展方向    2
1.4本文主要研究内容和方案    2
第2章超声波测距原理    4
2.1超声波简介    4
2.2超声波传感器介绍    4
2.3超声波测距原理    5
第3章系统硬件设计    7
3.1主控模块    7
3.2超声波测距模块    9
3.3显示模块    13
第4章系统软件设计    15
4.1主控模块    15
4.2超声波测距模块    18
4.3显示模块    20
第5章仿真和调试    25
第6章总结    28
参考文献    29
附录A 超声波测距电路原理图    30
附录B 程序清单    31
致谢    40