毕业设计：基于单片机的自动门控制系统.doc

基于单片机的自动门控制系统 摘 要 随着社会的发展、科技的进步以及人们生活水平的逐步提高它实用性强，功能齐全，技术先进，使人们相信这是科技进步的成果。它更让人类懂得，数字时代的发展将改变人类的生活，将加快科学技术的发展本设计主要应用单片机8051作为控制核心，电机、热释电型红外传感器相结合的系统充分发挥了单片机的性能其优点硬件电路简单，软件功能完善，控制系统可靠，性价比较高等特点，具有一定的使用和参考价值。The Automatic Door Control System Based On SCM Abstract Along with societys development, the technical progress as well as the people living standards gradual enhancement, automatic valve starts to enter peoples life. It is not only indispensable for hotels, supermarkets, banks and other modern architecture, but also become an important indicator of the level of construction of intelligent. There is beautiful, generous,windbreak, dustproof, lower noise. Meanwhile it is convenient for people to access. And it facilitate the management, enhance the safety. Its usable, he function is complete, the technological advance, causes the people to believe that this is the advance in technology achievement. It lets the humanity understand that Digital Ages development will change humanitys life, will speed up the science and technology the development. Automatic control system is the heart of the design, and the measure of the important indexes, the manufacture level. Also, it gradually toward large-scale, complicated and intelligent direction. This design mainly 8052 takes the control core using the monolithic integrated circuit, direct current system which the electrical machinery, the pyroelectric infrared sensor, the potentiometer unify. Has displayed monolithic integrated circuits performance fully. Its merit hardware circuit is simple, the software function is perfect, the control system is reliable, the performance-to-price ratio higher characteristic, has certain use and the reference value. Keyword：automatic door;SCM;control;PIRS 目录 1绪论 1 1.1 自动门发展历史 1 1.2 单片机的发展及89C51系列的运用 1 1.3 红外探测技术的发展 2 2系统总体方案 3 2.1 系统总体规划 3 2.2器件介绍 3 2.2.1 单片机 3 2.2.2热释电红外传感器 8 3 硬件设计 10 3.1 基本单片机系统 10 3.2 红外检测电路 10 3.2.1 放大信号电路 11 3.3 电动机电路 12 4控制系统软件设计 14 4.1 主程序设计 14 4.1.1 主程序流程图 14 4.1.2