单片机车门控制系统论文设计讲述.docx

单片机车门控制系统设计 上海大学 东方贱人 摘要：通过单片机控制每一列车厢的车门的开关，通过一些单片机传感元器件检测车门的开启状态,检测车门运行时是否有发生异常情况，比如是否有异物堵住车门。单片机给出车门电机转动信号，此时驱动电机的正转与反转正是反应列车车门运行状态，同时通过位置传感器检测门的位置状况，从而决定电机的转动与停止，系统要求具有一些指示灯，显示门的开关状态，采用51单片机为主控芯片，利用ULN2003芯片将单片机电平信号放大，驱动两个步进电机模拟屏蔽门与地铁车门，利用按键控制车门与安全门的开关，车站开门时有绿色指示灯提示开左或右方的车门，并在关门时有蜂鸣器三声警告提示乘客此时不适宜上车，请注意安全。通过软件程序控制单片机并控制两个步进电机（一个模拟车门、一个模拟安全门）的开与关、并伴随警告提示。 关键词：单片机；车门；电机 Design of the door control system of single-chip microcomputer Abstract: through the single-chip microcomputer control of each column compartment door switch, through some SCM sensing components detection door opening state, door detect run-time whether abnormal conditions occur, such as whether there are foreign bodies blocked the door. SCM door motor rotation signal, turning the drive motor and the reverse reaction is the train door operation state, at the same time by the position of the door position sensor, which determines the motor rotation and stop, the system requires some lights, display switch state of the door, using 51 single-chip microcomputer, as the main control chip, using ULN2003 chip the MCU signal amplifier, drive the two step motor simulation of shield door and subway door, the door and the safety door control switch button, the station opened the door when the green indicator light prompts open left or side of the door, and the door when there is sound warning buzzer three passengers at this time is not suitable for the car, please Caution. Through the software program to control the microcontroller and two stepper motor (simulate the door, a simulation of the safety door) on the open and close, and accompanied by warning tips. KeyWords:；Singlechip microcomputer ；Car door；Stepper motor；目 录 1 摘要 1 1 Abstract 1 1 目录 1 1 绪论 1 1.1 课题的目的与意义 2 1.2 国内外研究现状 3 1.3 发展趋势 3 1.4 车门故障分析 3 2 车门系统 3 2.1 车门结构 4 2.2 门驱动结构 6 2.3 车门故障指示 7 2.4 车门控制单元 8 2.4.1 车门控制简介 8 2.4.2 车门主要参数 8 2.4.3 车门可调整参数 9 2.5 车门开启条件 9 2.5.1 允许开门条件 9 2.5.2 通过激活“开门”实现开门 10