毕业设计论文-基于LabVIEW的交通信号灯设计.docVIP

毕业设计说明书(论文) 作 者: 学 号： 学院(系): 专 业: 题 目: 基于LabVIEW的交通信号灯 绿波带设计 指导者： (姓 名) (专业技术职务) 评阅者： (姓 名) (专业技术职务) 2011年 6 月 毕业设计说明书（论文）中文摘要 “绿波带”是指在某一路段，车辆以一定的速度行驶，若在第一路口遇到红灯，之后路口遇到全是绿灯；若在第一路口遇到绿灯，之后路口遇到也全是绿灯，犹如行驶在一条畅通无阻的绿色屏带中，故名绿波带。LabVIEW是一种用图标代替文本进行创建应用程序的图形化编程语言。本文首先分析了绿波带的实际应用及发展状况，然后重点分析了基于LabVIEW软件的交通信号灯绿波带设计过程，通过使用case结构、for循环等函数控件，运用商与余数的基本算法，实现红绿灯的倒计时控制，程序中定时计数可人为设定，灵活的人机交互方式充分发挥了虚拟仪器软件的特点。接着使用74LS04与74LS08两种芯片的与门和非门结构在ELVIES平台上搭建了硬件电路，而且很好的实现了电脑与平台之间的通信。最终调试中整个系统能够很好的反映绿波带的功能，而且明确的显示了绿波带的可调节性。 关键词 LabVIEW 绿波带 ELVIS平台 交通控制 毕业设计说明书（论文）外文摘要 Title Design of The Traffic Lights Green Wave Based on LabVIEW Abstract When driving on a section of highway with a certain speed,if you encounter a red light at the first intersection，then there will be green lights at all the remaining intersections. Also if it is a green one at the first intersection, they will be green lights at the rest of the intersections too. It likes driving in an unimpeded green screen. So it names Green Wave. LabVIEW is a graphical programming language which uses icons instead of texts to create applications. This article first analyzes the practical application and the development of green wave. And then it emphatically introduces the design process of traffic lights green wave which based on LabVIEW. Using the basic algorithm of the quotient and the remainder with the case construction, the for circulation and some other function controls, we can control the countdown of the traffic lights. And the time count can be set artificially in the program. The flexible human-computer interaction gives full play to the characteristics of the virtual instrument software. Then we use the AND gate and the NOT gate of the chips 74LS04 and 74LS08 to construct a hardware electric circuit on ELVIS platform.