甘芝国的毕业论文.docx

摘要当今社会自动化、信息化程度越来越高。单片机的使用范围愈来愈广，慢慢地成为人们日常生活中不可或缺的一部分。随着社会的飞速发展、科技的迅速进步以及生活水平的不断提高，生活中的自动控制系统慢慢的增加，逐步的影响现代人们的生活。以单片机为核心的自动车库门系统就是其中之一，同时也标志了数字时代新的成员——自动控制领域。本设计主要利用单片机电机控制系统来控制步进电机的运转进而控制车库门的自动开启与关闭。采用AT89C52 单片机作为控制核心，红外传感器、异步电机、限位开关相结合，微控制器与步进电机及其驱动电路、测控电路、LED指示灯等组成一个测控系统。充分发挥了单片机的性能，其优点具有电路简单，软件功能完善，控制系统可靠，性价比较高等特点。通过编程来实现对步进电机的正转、反转运行状态的控制，对LED指示灯的观察和电机的运动状态来反映车库门的升起与落下，能够在直观、有效、安全性能高的的前提下对单片机的控制加以论述，希望对今后的技术改进与优化能够有所帮助。关键词：单片机;自动车库门；红外传感器；异步电机AbstractAutomation in todays society, more and more high level of information. MCU range more widely, and slowly become an integral part of everyday life. With the rapid development of society, rapid advances in technology and the continuous improvement of living standards, the life of the automatic control system to increase slowly, and gradually the influence of modern peoples lives. SCM as the core of one of them automatic garage door system, but also marks a new member of the digital age - Automatic control.The main advantage of this designSCM motor control system to control the operation of the stepper motor controlled garage door and then automatically open and close. Using AT89C52 SCM as the core control, infrared sensors, asynchronous motors, limit switches combine a SCM with a stepper motor and drive circuit and control circuit, LED lights, etc. to form a control system. Give full play to the MCU performance, the advantage with a simple circuit, the software features improved control system is reliable, cost-effective features. Achieved by programming the stepper motor forward and reverse running state control, status LED on the movement observation and motor garage door to reflect rising and falling, can in an intuitive, effective, high safety performance Under the premise of the control of the SCM to be addressed, and I hope in the future of technology improvement and optimization can help.Keywords:?single chip microcomputer;?automatic garage door; infraredsensor;?asynchronous?motor摘要- 1 -Abstract- 2 -第一章 引言- 5