(完整版)_毕业设计外文翻译_37032651.doc

1、毕业设计（外文翻译）英文题目PLC-based design of traffic lights中文题目系 （院）专业基于 PLC的交通灯设计自动化系电气工程与自动化学生姓名学号指导教师职称讲 师二一三年六月PLC-based design of traffic lightsAbstract: One kind of traffic light control system using programmable logic controller (PLC), via software control traffic lights run automatically. In the system

2、, the original line is the program instead of the relay, programmable logic controller (PLC) system and emergency transport for a detailed description and from the East and West emergencies can be mutually linked. Traffic signal systemsand two seven-segmentdigital display in the countdown order; als

3、o discussedin detail the wiring of the configuration software MCGS, real-time monitoring of traffic lights, greatly improving the reliability of data transmission. At the same time, we can configure the traffic lights to change the status of photographs.Keywords: switching power,supply protection, c

4、ircuit system design1. IntroductionWith the social development and progress, traffic flow becomes increasinglyimportant. On the one . On the other the limited time it is necessary to maintain the vehicle and pedestrian fast and safe. Therefore, one kind of traffic light control system design, can be

5、 used to display time countdown, with computer controlled real-time data. In addition, the configuration technology for real-time images that reflect the traffic lights, understand the . The system consists of is installed in the in Figure 1. But there are some urgent matters, for example. There are

6、 a number of ambulances to transport patients to the traffic control system, under normal circumstances,two control methods and urgency traffic control factors into account. This processcan show 14 segment encoder. U.S. traffic lights instant record of the monitoring process.Emergency control signal

7、s to control traffic emergency switch. If there is no emergency lights all work, but when an emergency open. In this case, the car is urgent priority pass. Once the emergency vehicle passes,emergency switch off immediately. The green light in the same direction of the vehicle quickly flashes three t

8、imes, followed by the normal operation. If you were from the north-south and east-west two emergency vehicles, traffic control systems can respond quickly came early, and then another.2. Traffic Control System Design A. Hardware designCP1H series PLC as controller, display the procedure should stop

9、when the time series of abnormal system operation, the time will not be displayed. Whenthe emergency procedures are completed time series, countdown display program should be reset. At 220 V AC system is used to control traffic lights, 24 V DC control segment encoder, Figure 2 shows the scheme Easte

10、rn time display. CP1H series programmable logic controller (PLC) is a simple controller, which consistsof 24 inputs and sixteen outputs. Because the output to twenty In this system, an I O module must be extended. Circuit is shown in Figure 2.B. Control Program DesignSix timers and two special norma

11、l open pulse is used in this system, the green light flashes for all north-south and east-timer and a special pulse; eight kinds of interlocking internal relay is used to implement the urgency andtransmit pulse two directions to PLC, shown in the figure. Two SDEC instructions are used to display the

12、 countdown display the corresponding light. As an important part of the countdown display program, east and west of the green light reflected in the view 4 in these programs downloaded to the programmable logic controller (PLC), all the traffic lights running accuracy, urgency, and things can be int

13、erlocked from north to south strictly, all the lights can be set back to the urgency of passing state. Therefore, these control program is correct, simple.C. Monitoring SystemComputer system functions: an output signal acquisition and display real-time status of the programmable logic controller (PL

14、C) to control traffic lights, traffic lights. Another notification robot status and and configuration software MCGS configuration is easy. The serial communication is implemented as follows.Data inspection methods: double endedSerial Communications Number: COM0 endedThe minimum sampling period: 200

15、msProgrammable Logic Controller (PLC) The parameters are defined as follows:The minimum sampling period of the basic properties: 200 msThree readwrite channel: X0, X1, X2Six read-only access (read U.S. traffic lights): Q0-Q5All channels must be connected to a variable defined in a real-time database

16、 accessvisits and other parameters to their default values. After a successful relationship, PLC and computer control system is able to change the color of the analog signal lights in the picture on the PC being collected data through the serial port. In contrast, by changing the parameters of the t

17、o the PLC internal relay control, intersection traffic lights can be implemented. Experimental results show that the system is usually good enough and animation. Online monitoring system of traffic lights in Figure 5:3. ConclusionExperimental results show that the system is usually configured with e

18、nough good photos. This system simplifies the programmable logic controller (PLC) and the communication between the software development time is greatly reduced. In particular, more suitable for complex control systems. We can control the traffic lights by the PLC and MCGS configuration, replace the

19、 original relay control, improve the system's lifetime. At the same time, this method can be applied to control the motor and fluid levels. Remote control and configuration combined with the simulation, can be applied to similar control zone.4. References1 Whitworth, Duller, Jones D I. Aerial vi

20、deo inspection of overhead power lines J.Power Engineering Journal:25-32.2 Jan Axelson, Lakeview Research-Serial port complete D. USA:1999:91-135.基于 PLC 的交通灯控制系统设计摘要一种交通灯控制系统采用可编程序控制器(PLC),通过软件控制交通灯自动运行。 在系统原有的继电器线路被程序代替，可编程序控制器 (PLC) 系统的硬件和软件资源的被合理使用。正常运行和紧急运输进行了详细的介绍， 并从突发事件的东西南北可以相互连锁。交通灯信号系统和两个数

21、码管显示在倒计时秩序; 同时详细的论述布线的硬件和 PLC 的梯形图。在十字路口的交通信号灯远程监控系统设计了组态软MCGS ，实时监控红绿灯，大大提高了数据传输的可靠性。与此同时，我们可以通过合理配置改变交通信号灯的状况。关键词 ：PLC ，交通信号灯， SDEC，配置软件， MCGS 组态一、引言随着社会的发展和进步 ,交通畅通变得越来越重要。 一方面 ,太多的十字路口 , 车辆越来越多，这些都造成严重的交通堵塞。另一方面，在有限的时间有必要保持车载和行人快速和安全。 因此，一种交通灯控制系统的设计 , 可以用来显示时间的倒计时 , 与电脑联网控制实时数据。此外 ,配置技术应用于实时图像反

22、映的交通信号灯、了解历史工作的十字路口， 获得交通信号灯的可视化。该系统由计算机主机和较低的电脑。 MCGS 组态被安装于主机、较低的电脑是由 PLC 控制系统。时序图正常交通信号灯显示图 1，但也有一些紧急的事情。 例如有一些救护车用来运送病人医院或一些消防车用来对付大火。消防车和救护车优先于其他的交通赶到出事地点，根据城市交通控制系统，正常情况下两种控制方法交通控制和紧迫性因素考虑在内。这个过程可以显示了 14 段编码器，美国的交通信号灯的即时照片记录了监控过程。紧急控制信号是控制交通紧急开关如果没有紧急事件所有的红绿灯正常工作，只是紧急事件发生的时候打开。在这种情况下 ,紧急的车是优先通

23、过。一旦紧急车辆经过 ,应急开关立即关掉。那绿色的光在同一方向的车辆迅速闪三次，随后正常运行。如果从南北和东西分别有两个紧急车，交通控制系统只能迅速反应来得早的，然后另一个。二、交通控制系统的设计A.硬件电路设计CP1H 系列的 PLC 作为控制器 ,，显示的程序应该停止的时候，时间序列异常系统工作，时间不会被显示。当紧急程序完成了时间序列、倒计时显示的程序应该被重置。在 220 V 交流系统是用来控制交通信号灯， 24 V 直流控制七段编码器，图 2 显示了方案东西方时间显示。 CP1H 系列可编程序控制器 (PLC) 的一个简单的控制器，它由 24 输入和 16 个输出。因为需要二十输出在

24、这个系统中 ,一个 IO 模块必须被扩展。线路图如图2：B.控制程序的设计六个定时器和两个特殊的正常开启脉冲是用来在这个系统中，绿色灯闪南北及东西进行所有的定时器和特殊的脉冲；八种内部继电器被用来实现联锁的紧迫性和发送脉冲两个方向至 PLC ，图中显示。两个 SDEC 指示是用来显示倒计时显示相应的光。作为一个重要的部分 ,倒计时显示程序，东、西向的绿灯表现在视图 4。在这些程序下载到可编程序控制器 (PLC) ，所有的交通灯运行准确、紧迫性和从南北东西可以联锁严格时，所有的灯都能回到设置的迫切性经过时的状态。所以这些控制程序是正确的、简单的。C.监控系统的设计计算机系统有两个主要功能： 一个输出信号的采集和显示实时状态的可编程序控制器 (PLC) 控制交通信号灯、交通信号灯，另一个通知机