—基于labview的交通信号灯课程设计 .pdf

《虚拟仪器》课程设计说明书

基于labview的交通信号灯课程设计

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目录

1虚拟仪器LabVIEW和交通灯简介·················3

1.1LabVIEW简介·······················3

1.2交通灯介绍························3

2总体设计方案··························4

2.1实现功能·························4

2.2总体设计思路·······················4

3程序的设计···························5

3.1前面板设计·························5

3.2定时信号的产生······················6

3.3时间信号的分段······················6

3.4各组时间信号的动作····················7

3.5循环的设计························10

4调试及结果···························11

结束语·····························14

致谢·····························15

参考文献····························16

附录交通灯程序图·······················17

摘要

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LabVIEWELVIS平台交通控制

1

Abstract

LabVIEWisagraphicalprogramminglanguagewhichusesiconsinstead

oftextstocreateapplications.Thisarticlefirstanalyzesthepractical

applicationandthedevelopmentofgreenwave.Andthenitemphatically

introducesthedesignprocessoftrafficlightsgreenwavewhichbased

onLabVIEW.Usingthebasicalgorithmofthequotientandtheremainder

withthecaseconstruction,theforcirculationandsomeotherfunction

controls,wecancontrolthecountdownofthetrafficlights.Andthetime

countcanbesetartificiallyintheprogram.The