摘要：随着社会生产和科学的发展，单片机技术的快速发展，自动控制已经成为我们日常生活中不可缺少的一部分，而对于车门控制系统的研究也已经受到了社会各界的关注。由于乘客对舒适性要求的逐渐升高以及人性化技术在列车上运用的成熟，车门控制系统必然是发展趋势，并且当具有技术性的优势时，车门控制系统在国内和国外都将拥有广阔的市场。
本系统采用单片机AT89C51为核心，它有着体积小、功耗低、功能强、性价比高、便于推广应用等明显优点。采用人体红外线传感器为其感应器，使门控系统工作更加安全。其中的要点是，当人体红外模块感应感应到温度差时，会将温度差转化为电信号，以此来触发单片机中断。接着由单片机通过ULN2003驱动步进电机动作，电机的正反转分别表示自动门的开启和闭合，通过15个LED灯的逐次亮灭来模拟开关门状态。人体红外传感器将信号传送给51单片机为本系统的创新。27721
毕业论文关键词：AT89C51；人体红外模块；步进电机；ULN2003
Door control system based on single chip
Abstract：With the development of social production and science, the rapid development of chip technology, the automatic control of our daily lives has become an indispensable part of, and for the study of the door control system has been the concern of the community. With the user-friendly technology becomes more mature on the train and passenger comfort requirements gradually improve, the door control system has become a trend, and when there is a technical advantage, door control system in the country and abroad will have a huge market.
    This system on the single chip computer AT89C51 as the core,It has a small size, the effect of low, powerful, high performance and low cost, ease of application and other significant advantages. using the human body infrared sensors as sensor,Gating system to make work safer. The most important here is that to detected in human radiation of infrared energy change and transformed into electrical signals to trigger a microcontroller interrupt. Then the single chip microcomputer drive the stepper motor moves by ULN2003. The positive and negative of the motor respectively represent its opening and closing. Through 15 LED lights to simulate the opening and closeing of the automatic door.PIR sensor sends a signal to the microcontroller-based system of innovation 51.
Keywords: AT89C51；human body infrared module；stepper motor；ULN2003
目录
1 绪论    1
 1.1 概述    1
 1.2 车门控制系统的发展与现状    1
 1.3 系统总体设计方案    2
   1.3.1 系统的性能要求及特点    2
   1.3.2 系统硬件方案分析    2
   1.3.3 系统软件方案分析    3
 1.4 本文主要工作及章节安排    3
   1.4.1 本文主要工作    3
   1.4.2 章节安排    3
2 车门系统控制设计    5
 2.1 驱动电机    4
 2.2 电动机驱动模块    4
 2.3 微处理器模块    5
 2.4 人体检测模块    5
 2.5 故障检测模块    5
3 硬件设计    6
 3.1 系统原理和框图    6
 3.2 功能模块的设计    7
   3.2.1  单片机介绍    7
   3.2.2  热释电红外传感器介绍    10
   3.2.3  BISS0001芯片介绍和典型电路    10
   3.2.4  步进电机    14 51单片机的车门控制系统设计+电路图+源程序:http://www.751com.cn/zidonghua/lunwen_22295.html