摘要
为解决黑暗环境中开启照明装置所带来的不便和不安全,设计了一种基于热释电传感器的人体热辐射检测电路。阐述了热释电红外传感器的结构,设计了包含有前置放大电路、电压比较电路、延时电路和电源电路组成的红外检测系统,分析了检测电路的工作原理,提出了检测电路的安装要求。所设计的电路性能可靠、成本低、易于安装,适用于居民家庭、宾馆走廊、学生宿舍、教学楼道等场合。
An infrared radiation detection circuit based on pyroelectric infrared sensor is designed in this paper to resolve the inconvenience and insecurity of opening lamps in nightlight environment. The structure of the pyroelectric infrared sensor is described. A detecting system composed of pre-amplifier, voltage comparison circuit, delay unit and power circuit is set up. The operation principle of the circuit is analyzed, and the installation requirements are put forward. The designed circuit is suitable to be applied in the residential home, hotel corridor, student dormitory and education building due to its advantages of reliable performance, low cost and simple installation.
出处
《电子技术（上海）》
2013年第2期33-35,共3页
Electronic Technology
基金
泰安市大学生科技创新行动计划项目(2011D2032)
关键词
人体辐射
热释电红外传感器
照明
信号检测
人身安全
Human body radiation
pyroelectric infrared sensor
illumination
signal detection
personal security
