基于单片机的空气中 PM2.5 浓度报警器 Design of Infrared Remote Control Electronic Code Lock Based on 51 Single Chip Microcomputer摘要如今，空气质量与能见度一天不如一天，这与空气中存在的细微颗粒物离不开干系，在如此多肉眼不可见的颗粒物中，这中间影响最严重的是 PM2.5 细微颗粒物，含量浓度越高其在空气中能较长时间悬浮，并且能突破人体鼻腔的防御对心肺功能造成影响，久而久之将对人体造成损伤，空气的监测刻不容缓。设计是对 PM2.5 浓度的检测，一方面可以监督空气状况，另一方面对于需要优质空气质量的人群来说，这种空气质量提示功能也是非常必要的。便携式的检测仪便是我此设计的初衷，这样也能及时有效的做出应对措施。本课题设计一种可以自动检测 PM2.5 分成的电子设备。对空气中的Pm2.5 浓度进行实时监控，如高于一定上限值时的提示与报警。当 PM2.5的浓度超过上限时，还要求能够控制风扇转动，模拟系统换气功能。本系统为这种空气检测及处理系统的原理性原型，要求以实物形式实现基本功能。关键词： PM2.5；单片机；报警器；传感器技术；粉尘浓度 AbstractToday, one day as a day of visibility and air quality, and this is the subtle air particulate matter without involvement, in so many particles are not visible to the naked eye, it is among the worst affected PM2.5 fine particles, the higher levels of concentration in the air can be suspended for a long time, and can break through the body's defenses nasal affect cardiopulmonary function, over time will cause damage to human body, air monitoring is of great urgency. The design is the detection of PM2.5 concentration. On the one hand, it can monitor the air condition. On the other hand, it is also necessary for people who need high quality air quality to have this air quality indicator function. The portable detector is the original intention of my design, so as to make timely and effective countermeasures. This project designs an electronic device that can automatically detect the fraction of P...
