英语翻译自动门是随着人们对生活条件的不断追求、科技的不断发展应运而生的高科技产品,因此,它具备了普通门所没有的优势：雅观

英语翻译
自动门是随着人们对生活条件的不断追求、科技的不断发展应运而生的高科技产品,因此,它具备了普通门所没有的优势：雅观漂亮,而且使用管理起来更加的安全、方便、舒适,通电后可以实现无人看管,同时又可节约空调能源、防风、防尘、降低噪音,既方便又提高了建筑的档次.因此自动门被广泛的应用于大型商场、银行、大酒店、机场、办公大厦等各种大型的公共场所.
而国内自动门发展整体状况堪忧,设计五花八门,质量参差不起,基于这种现状,想设计一种结构简单,性能稳定可靠,成本低廉,可以广泛应用的基于plc的自动门控制系统,满足市场要求.
本论文主要是对门的自动开、关控制而论.它主要是利用光电传感器检测,有无人到门口的信号,再把检测到的信号送入PLC中,由PLC来对信号的处理,处理的最后结果用继电器输出,控制直流电动机的转动,当直流电动机正转时,门自动打开；当直流电动机反转时,门自动关闭.

Automatic door is the living conditions as people continue to pursue the development of science and technology came into being in the high-tech products,so it does not have the advantages of ordinary doors:decency pretty,and use and management of them more secure,convenient,Comfort,power can be achieved after the unattended while at the same energy saving air conditioning,wind,dust,noise reduction,convenient and improve the grade of the building.Therefore,automatic doors are widely used in large shopping malls,banks,large hotels,airports,office buildings and other large public places.
The overall situation of domestic automatic door worrying development,design variety,quality varies can not afford,based on this situation,would like to design a simple structure,stable performance,low cost,can be widely applied plc based automatic door control system to meet market requirements.
This thesis is the automatic door opening and closing control terms.It is mainly used photoelectric sensors to detect,there is no signal to the door,then into the PLC signal is detected,the signal from the PLC to the handling,processing of final results with the relay output to control DC motor rotation,When the DC motor forward,the door opens automatically; when the DC motor reversal,the door automatically closed.