摘要
介绍了一种基于热释电传感器感测的人体信息控制、实现电路自动断开或关闭的新型自动开关。该自动开关集被动探测与主动探测为一体,并由单片机控制,能方便、准确、快捷地检测出人体信息,实现人来、人在时开关接通,人离后自动断开的控制功能。该自动开关由于对活动人体与静止人体都敏感,主动探测机构只需间断工作,从而大大扩展了应用空间,减少了能耗和机损。着重阐述了利用热释电传感器检测静止人体信息的原理,讨论了系统的软硬件设计和实现方法。
This article introduces a kind of automatic switch which is based on pyroelectrical sensor for body information control. Special emphasis is put on the design procedures and the principle of surveying human body through pyroelectrical detector. The experiments show that the switch has such good features as quick response, high accuracy, high reliability and low energy consumption etc.
出处
《电子工程师》
2005年第11期75-77,共3页
Electronic Engineer
关键词
自动开关
热释电传感器
单片机
人体信息
automatic switch, pyroelectrical detector, single-chip computer, human body information
