基于PLC交通灯控制系统的设计.doc

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基于PLC交通灯控制系统的设计 摘 要 现在社会,交通工具越来越多,从古代的“11路公交车”到后来的马、马车以及近代的人力车、自行车、汽车、摩托车等越来越多的交通工具出现。在近代交通工具有单还不多,但在现在社会车辆越来越多,例如美国被称为汽车上的国家、印度被称为三轮车上的国家,中国随着社会的发展,经济水平的不断提高,老百姓水平的不断提高,汽车这一社会产物已经悄然而然的进入了千家万户,它不再是富人的消费品,而成为普通老百姓家庭生活的一部分,这个时候在道路上自然而然得拥挤起来,单单靠交警叔叔的指挥已不能完成这一复杂的变化,更何况在风雨、大雪、沙尘等不良天气下交警叔叔的工作带来更大的不便,这个时候交通灯便上场了,可以采用早期的模拟电路、数字电路或模数混合电路。近年来随着科技的飞速发展。单片机、P LC的应用不断地走向深入。同时带动传统的控制检测技术的不断更新。可以采用早期的模拟电路、数字电路或模数混合电路。近年来随着科技的飞速发展。单片机、PLC的应用不断地走向深入。同时带动传统的控制检测技术的不断更新。 关键字:PLC,交通灯,梯形图,设计 !!所有下载了本文的注意:本论文附有CAD图纸和完整版最终设计,凡下载了本文的读者请留下你的联系方式(QQ邮箱),或加我百度用户名QQ,我把图纸发给你。最后,希望此文能够帮到你! PLC-BASED CONTROL SYSTEM FOR TRAFFIC SINGAL DESIGN ABSTRACT Society, more and more modes of transport, from the ancient 11 Bus to the later of the horses, carriages, as well as modern rickshaws, bicycles, automobiles, motorcycles and other modes of transport appear more and more. Modern modes of transport in less than a single, but now more and more social vehicle, such as the United States known as the national car, tricycles, known as Indias national, social development in China with the economic level of the continuous increase in the level of the continuous improvement of people, cars have been the product of the society quietly and ran into the tens of thousands of households, it is no longer a rich consumer goods, ordinary people to become part of family life, this time on the road was crowded naturally to simply rely on the traffic police have been unable to command his uncle to complete the changes in this complex, letrs, with the rapid development of science and technology. Single-chip, PLC applications to continue to depth. At the same time, the control of traditional detection technologies constantly updated. Can be used early analog circuits, alone in the wind and rain, snow, dust and other adverse weather conditions brought about by the work of traffic police uncle greater inconvenience of traffic lights at this time they play, you can the early use of analog circuits, digital circuits or analog-

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