设计简介
本课题的任务是拟设定一种刚性挡车器，在重点进行抗冲撞设计的同时，充分发挥计算机控制技术的优势，实现系统的自动控制。其设计成果可望形成一种有实用价值的现代化防恐设备。得益于切换的快速性以及外形的美观，直杆类的挡车器应用得非常广泛，但是，各收费站使用的直杆类挡车器，对违章司机形同虚设，车辆冲卡现象相当严重，更有甚者，撞伤、撞死执情人员，有时也发生。严重威胁收费站工作人员的人身安全，造成征费工作困难，直接影响我国公路事业的发展。
本论文以89C51单片机为核心对防恐电子挡车器进行各种信号处理和自动控制的，完成了简单的机械装置的设计及电气与单片机系统硬件、软件设计。其中电气与单片机系统硬件、软件设计是本论文的重点，系统硬件设计主要包话了89C51单片机、光电耦合器、车辆检测器和脉冲记数器等的设计。
关键词 刚性挡车器 自动控制 系统硬件 软件设计
The task of this subjcet is to design a rigid board barrier.Taking full advantage of computer-control technology it will not only have the strong resistance of colliding but also a system of automatic control. This design result may become a kind of modern anti-terror equipments. Bar barrior is very common because of its fast up-down changing and its beautiful appreance.However, some toll stations with these bar barriers are only unefficient nominal to the illegal drivers .This phenomenon is a serious threat to safety of administrators in these toll stations. The development of highway business will to be constraintde. 89C51 single chip microcomputer is as a core to process all information and automatically control this anti-terror electronical board barrier. This thesis contains the designing of machinery and the desiging of hydraulic system and the designing of the control system of single chip microcomputer and the system of software，Among others, the last is the thesis’s main content. The hardware system primarily contains the designing of 89C51 single chip microcomputer and light-electricity transformation and vechicle detector and pulse counter etc.
Keywords Rigid board barrier System of automatic control Hardware system Software system
目 录
1 引言 1
1.1 当前电子挡车器的现状与需求 1
1.2 本课题研究的意义 2
1.3 本课题的主要任务 3
2 防恐电子挡车器的机械结构 4
2.1 四杆机构的选用 4
2.2 机械部分要求 5
2.3 确定液压系统方案 5
2.4 机械部分的设定方案 7
3 防恐电子挡车器的内部控制系统设计 9
3.1 单片机的比较与型号选择 9
3.2 需求分析 10
3.3 89C51单片机的硬件结构与各工作原理 14
3.4 89C51的引脚介绍 19
3.5 其他软件介绍与外电路的说明 21
4 软件系统的设计 26
4.1 主程序的描述 26
4.2 子程序的描述 28
4.3 参数的设置 31
结束语 32
致 谢 33
参 考 文 献 34
本论文以89C51单片机为核心对防恐电子挡车器进行各种信号处理和自动控制的，完成了简单的机械装置的设计及电气与单片机系统硬件、软件设计。其中电气与单片机系统硬件、软件设计是本论文的重点，系统硬件设计主要包话了89C51单片机、光电耦合器、车辆检测器和脉冲记数器等的设计。
关键词 刚性挡车器 自动控制 系统硬件 软件设计
The task of this subjcet is to design a rigid board barrier.Taking full advantage of computer-control technology it will not only have the strong resistance of colliding but also a system of automatic control. This design result may become a kind of modern anti-terror equipments. Bar barrior is very common because of its fast up-down changing and its beautiful appreance.However, some toll stations with these bar barriers are only unefficient nominal to the illegal drivers .This phenomenon is a serious threat to safety of administrators in these toll stations. The development of highway business will to be constraintde. 89C51 single chip microcomputer is as a core to process all information and automatically control this anti-terror electronical board barrier. This thesis contains the designing of machinery and the desiging of hydraulic system and the designing of the control system of single chip microcomputer and the system of software，Among others, the last is the thesis’s main content. The hardware system primarily contains the designing of 89C51 single chip microcomputer and light-electricity transformation and vechicle detector and pulse counter etc.
Keywords Rigid board barrier System of automatic control Hardware system Software system
目 录
1 引言 1
1.1 当前电子挡车器的现状与需求 1
1.2 本课题研究的意义 2
1.3 本课题的主要任务 3
2 防恐电子挡车器的机械结构 4
2.1 四杆机构的选用 4
2.2 机械部分要求 5
2.3 确定液压系统方案 5
2.4 机械部分的设定方案 7
3 防恐电子挡车器的内部控制系统设计 9
3.1 单片机的比较与型号选择 9
3.2 需求分析 10
3.3 89C51单片机的硬件结构与各工作原理 14
3.4 89C51的引脚介绍 19
3.5 其他软件介绍与外电路的说明 21
4 软件系统的设计 26
4.1 主程序的描述 26
4.2 子程序的描述 28
4.3 参数的设置 31
结束语 32
致 谢 33
参 考 文 献 34
