1、 毕 业 设 计（论文） 题 目：楼道人体红外感应系统的研究 系 ：信息工程系 专 业：应用电子技术 班 级： 学 生： 学 号： 指导教师： 职称：讲 师 摘 要 本文介绍了红外线感应开关的原理，采用热释电红外探头（PT8A2621）将接 收到的微弱信号加以放大，然后驱动继电器，制成红外热释电感应开关。本开关 能探测来自移动人体的红外辐射，只要人体进入探测区域，开关会自动开启。该 设计可作为企业、宾馆、商场及住宅的走廊、楼梯、电梯间、卫生间、库房等处 的自动开关，起到“人来灯自亮，人走灯自灭”的作用，既新颖方便，又节约用 电，在某些场所还能起到威慑盗窃活动的防范作用。本设计结构简单，本身不发
2、 任何类型的辐射，器件功耗很小，价格低廉，隐蔽性好，应用范围广，所以可以 通过扩展而达到实际的应用。 关键词：红外线，感应开关，红外辐射，探测区域 作者： 指导老师： ABSTRACT This paper introduces the principle of the infrared sensor switch, the use of pyroelectric infrared sensor (PT8A2621) will receive the weak signal to be amplified, then drive the relay, made of pyroelectric
3、infrared sensor switch. The switch can detect infrared radiation from the mobile body, as long as the human body into the detection area, switch on automatically. The design can be used as enterprises, hotels, shopping malls and residential corridors, stairs, elevators, bathrooms, warehouse, etc. Th
4、e automatic switch, act as a “people to light from the light, people take the light from the off“ role, both new and convenient and conservation of electricity, in some places but also play a preventive role in deterring theft. The design of simple structure, itself does not send any type of radiation, the device power consumption is very small, cheap, good for hiding, and wide application, it can be extended to achieve practical application. Key words: infrared, sensor switch
