红外线自动门控制系统

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重庆工业职业技术学院

毕业设计论文

姓名:查 伟

学号:20094073201

院系:自动化系

班级:09机电302

指导教师:朱开波

1 目 录

摘 要 Ⅰ

Abstract Ⅱ

第一章 绪论 ······················································································································································ 3

1.1 课题研究的可行性 ······························································································································ 3

1.2 课题的意义和目的 ······························································································································ 3

1.3 关于设计的简介和用途 ······················································································································· 4

1.4 该设计的基本设计思路 ······················································································································· 4

第二章 主要器件的介绍 ····································································································································· 5

2.1 单片机控制电路 ··································································································································· 5

2.1.1 单片机简介 ························································································································· 5

2.1.2 时钟电路和复位电路 ·········································································································· 6

2.2步进电机模块与驱动 ···························································································································· 7

2.2.1步进电机 ······························································································································ 8

2.2.2.步进电动机的驱动方法 ····································································································· 11

2.3 红外传感器的原理和使用 ·················································································································· 14

2.4 BISS0001芯片介绍和典型电路 ······································································································· 16

2.5 菲涅尔透镜原理 ······························································································································· 21

第三章 系统硬件设计 ····································································································································· 27

3.1 设计电路的电框图和原理 ················································································································· 27

3.2 各部分程序设计 ·································································································································· 28

第四章 系统软件设计 ····································································································································· 34

4.1 设计电路原理图 ······························································································································ 34

设计总结 ···························································································································································· 36

主要参考文献 ···················································································································································· 37

致谢信 ································································································································ 错误!未定义书签。

摘 要

2 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,各种方便于生活的自动控制系统开始进入了人们的生活,以单片机为核心的自动门系统就是其中之一。同时也标志了自动控制领域成为了数字化时代的一员。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。

过对“红外通感应自动门单片机控制系统”的研究和设计,精心撰写了单片机控制自动门系统论文。本论文着重阐述了以单片机为主体,LED点阵显示芯片及无刷直流电机为核心的系统。本设计主要应用AT89C51作为控制核心,无刷直流电机、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,控制系统可靠性比较高等特点,具有一定的使用和参考价值。

关键词:单片机 红外线传感器 AT89C51 BIS0001芯片

3 第一章 绪论

1.1 课题研究的可行性

今天,人类已进入科学技术空前发展的信息社会,电子计算机、机器人、自动控制技术以及单片机嵌入系统的迅速发展,迫切需要行行色色的传感器。作为“感觉器官”,传感器用于将各种各样的信息检测并转换为工作系统能进行处理的信息。显而易见,传感器在现代科学技术领域中占有极其重要的地位,了解、掌握和应用传感器成了许多专业工程技术人员的必需,“传感器技术与应用”成了应用电子技术、自动控制技术、自动信号技术、测量技术、机器人技术及计算机应用等专业的必修课。

目前,市场上出现的热释电人体红外线传感器主要有上海产的SD02、PH5324,德国产的LH1954、LH1958,美国HAMAMATSU公司产P2288,日本NIPPON CERAMIC公司的SCA02-1、RS02D等。虽然它们的型号不一样,但其结构、外型和电参数大致相同,大部分可以彼此互换使用。

本设计主要应用单片机8051作为控制核心,步进电机、热释电型红外传感器、电位器相结合的系统。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。

1.2 课题的意义和目的

经济飞速发展的中国,高楼耸立的大都市,自动门已经是随处可见,在各大厦、宾馆、酒店、银行、商场、医院、写字楼等场所,自动门更是得到大范围的普及使用。自动门不但能给我们带来人员进出方便、节约空调能源、防风、防尘、降低噪音等好处,更令我们的建筑增添了不少高贵典雅的气息。

自动门根据使用的场合及功能的不同可分为自动平移门、自动平开门、自动旋转门、自动圆弧门、自动折叠门等,其中自动平移门使用得最广泛,我们通常所说的自动门、感应门就是指自动门。

自动门最常见的结构形式是自动门机械驱动装置和门内外两侧红外线,当人走近自动门