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基于PLC的晾衣架
晾衣架大家都很清楚吧，随着时代的发展，晾衣架也是各种各样，比如农村一根绳子往两个杆子上一架那就成晾衣架了，后来发展也越来越复杂，越来越人性化，而且晾衣架的历史都能追溯到我们古人呢。
而现在 晾衣架市场的发展已日趋成熟，细心的消费者不难发现以往大商场或小百货店内形式单一的衣架，正逐渐变得丰富多彩，各种新型的衣架悄然登场亮相，以其方便、实用赢得了不少顾客的欢心。据介绍，新型衣架跳出了单一的模式，分工越来越细致，空间利用越来越合理，品种更趋多样化。由于分工的不同，各种裤架、裙裤架、西装衣架、呢大衣架、领带架应运而生。这些衣架都是根据不同的衣物类型专门设计的，使之存放服饰的效果更佳。
在中国，“晾衣架”一般意指“升降晾衣架”，或所谓的“电动晾衣架”。分手动、电动两种。手动（手摇）较为普及。电动之所以未能普及推广，这是由于整个行业技术上的不成熟以及售后服务的局限——毕竟是镶在天花板上，不像小家电一样容易搬移去维修保养。因而目前，还是手动（手摇）为市场的主导。但是， 随着奥丽德推出第一台电动晾衣机之后，　奥丽德电动晾衣机逐渐受到同行的普遍关注以及市场广泛支持，奥丽德电动晾衣机将引领晾衣机行业新一轮的技术革命，成为电动晾衣机的领导品牌。未来几年，电动晾衣机将超越手动晾衣机成为市场新宠。
　
   行业历史和现状 ：“晾衣架”是中国一大特色产品，该行业形成至今已有十多年时间，从开创至今技术不断改进和变革，其基本组成为：手摇器（负责升降、自锁），钢丝，转向器，顶座，晾杆，衣架。手摇器是晾衣架的核心部件，相当于汽车的发动机！备受关注。经历了数年的磨合，行业质量逐渐趋向稳定。
   行业的发展及未来 ：晾衣架不仅仅是一个装饰品，更是一个功能性的产品。目前晾衣架的“功能”已经普遍得到消费者的认可，已经形成一个“行业”。
一、拉伸式晾衣架
拉伸式拉伸型晾衣架也是装在墙壁上的，平时可推紧贴在墙壁上，使用时拉开来晾挂衣服。适用于房间、阳台和室外。
二、壁挂式晾衣架
壁挂式壁挂式晾衣架是装在墙壁上的，安装高度一般到人的胸部，设计合理的应可以打起和放下，平时放下时贴着墙壁，不占用空间，要晾衣服时才打起。这些晾衣架短的适于酒店、宿舍、医院病房、家庭的房间等等。长的适用于室外，如别墅或有院子的房屋。
三、落地式晾衣架
落地式落地式晾衣架就是直接放在地上用的一种晾衣架，现时常见的有X型、蝴蝶型（又称翼型）、单杠双杠型几种。适用于房间、阳台和室外。
四、阳台升降式晾衣架
是安装在阳台，通过手摇或电动的方式使晾杆降低，把衣服晾好后，再使晾杆升高的一种晾衣架。这种产品适宜在家庭和宿舍的阳台用。
而我要研究的就是最后一种晾衣架，现在的的阳台晾衣架只能通过电动或者手动在阳台上升降，但是遇到雨天或者天黑来不及收衣服就很不方便，智能阳台晾衣架就是通过传感器感知外面的温度以及光度然后通过PLC控制把晾衣架收缩进来，早上根据外面条件可以自己升到外面，这种设置大大方便了人类的生活，以及上班族的顾虑。

Dryer it is clear to all, with the development of the era, dryer is various, such as rural a rope to the two poles on a plane that is into dryer, later development is becoming more and more complex, more and more humanization, and clothes-horse ancient history can be traced back to the us?
Now dryer has been mature, the development of the market of it is not difficult to find a single big stores or small articles of daily use in-store form before hangers, is gradually become rich and colorful, all kinds of new type of hangers quietly, with its convenient, practical and winning customers favor. According to introducing, new clothes tree out of the single pattern, division of labor is more and more meticulous, space utilization is more and more reasonable, varieties more. Because of the different division of labor, all kinds of pants, skirts pants, suit hangers, coat and tie rack arises at the historic moment. These hangers are specially designed according to the different types of clothing, make store clothing effect is better.
In China, "dryer" generally refers to "lift clothes-horse", or so-called "electric dryer. Break up, electric two kinds. Common manual (hand). Electric is not popularized, it is because of the whole industry technical not mature as well as the limitations of after-sales service, after all is set on the ceiling, don't like small home appliance is easy to move to maintenance. So at the moment, or manual (hand) as the dominant. But, as Mr Li, after the launch of the first electric washing machine, Mr Li DE electric washing machine gradually universal attention and market widely supported by peers, Mr Li DE electric washing machine would lead washing machine industry a new round of technological revolution, become the leading brand of the electric washing machine. In the next few years, electric washing machine will surpass manual washing machine to become the market to be bestowed favor on newly.
Industry history and status quo: "dryer" one is the Chinese characteristic products, the industry's formation has been more than ten years of time, since starting technology improvement and change constantly, the following basic components: hand (responsible for lifting, self-locking), steel wire, steering, roof, hanging bar, hangers. Hand is the core component of dryer, equivalent to the car's engine! Is a major concern. Experienced several years of running-in, industry quality gradually stabilized.
The development of the industry and in the future: dryer is not only an ornament, but also a functional products. Clothes-horse "function" is now generally recognised by consumers, has formed a "industry".
A, stretching type dryer
Stretching type stretching type dryer is installed on the wall, at ordinary times can be pushed against the wall, when using began to hang clothes. Applicable to the room, the balcony and outdoor.
Second, wall-mounted drying rack
Wall wall hung clothes hanger is mounted on the wall, installation height to the average man in the chest, reasonable design should be up and down, down on the wall at ordinary times, do not take up space, play clothes to dry. These clothes-horse short is suitable for hotel, dormitory, the hospital ward, family room and so on. Long are suitable for outdoors, such as villa or courtyard houses.
Third, floor type dryer
Floor floor type dryer is directly on the ground with a clothes-horse, now common with X, butterfly type (also called airfoils) type, horizontal bar, parallel bars. Applicable to the room, the balcony and outdoor.
Four, balcony lift dryer
Is installed on the balcony, make hanging rod is reduced by means of manual or electric, put up the clothes to dry, then make the hanging rod rise in a dryer. This product is suitable for the family and the dormitory with balcony.
And I have to study is a final clothes-horse, now of the balcony airer only by electric or manual lifting on the balcony, but encounter a rainy day or dark too late to receive the clothes is not very convenient, intelligent clothes-horse balcony is through the sensors to the outside temperature and luminosity and then through the PLC control the clothes-horse contraction to come in, according to the conditions can be up to the outside, outside in the morning it is greatly convenient for human life, and worries of workers.